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120212210220 = 22353860951893
BaseRepresentation
bin110111111110100110…
…1001100001000101100
3102111021210111000012020
41233331031030020230
53432143311211340
6131120312510140
711453653633044
oct1577515141054
9374253430166
10120212210220
1146a88727873
121b36a9ab350
13b44a15824b
145b655c6724
1531d89229d0
hex1bfd34c22c

120212210220 has 48 divisors (see below), whose sum is σ = 336609393120. Its totient is φ = 32055141376.

The previous prime is 120212210219. The next prime is 120212210221. The reversal of 120212210220 is 22012212021.

It is an interprime number because it is at equal distance from previous prime (120212210219) and next prime (120212210221).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120212210220.

It is not an unprimeable number, because it can be changed into a prime (120212210221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2290594 + ... + 2342486.

It is an arithmetic number, because the mean of its divisors is an integer number (7012695690).

Almost surely, 2120212210220 is an apocalyptic number.

120212210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120212210220 is an abundant number, since it is smaller than the sum of its proper divisors (216397182900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120212210220 is a wasteful number, since it uses less digits than its factorization.

120212210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90514 (or 90512 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120212210220 its reverse (22012212021), we get a palindrome (142224422241).

The spelling of 120212210220 in words is "one hundred twenty billion, two hundred twelve million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 38609 51893 77218 103786 115827 154436 155679 193045 207572 231654 259465 311358 386090 463308 518930 579135 622716 772180 778395 1037860 1158270 1556790 2316540 3113580 2003536837 4007073674 6010610511 8014147348 10017684185 12021221022 20035368370 24042442044 30053052555 40070736740 60106105110 120212210220