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2120012212 = 222397237563
BaseRepresentation
bin111111001011100…
…1101000110110100
312110202011210000211
41332113031012310
513320210342322
6550211115204
7103351543423
oct17627150664
95422153024
102120012212
1199876760a
124b1ba2b04
1327a2a69c6
141617b92ba
15c61bbb77
hex7e5cd1b4

2120012212 has 24 divisors (see below), whose sum is σ = 3911253696. Its totient is φ = 1003461888.

The previous prime is 2120012203. The next prime is 2120012227. The reversal of 2120012212 is 2122100212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2120012192 and 2120012201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109858 + ... + 127705.

It is an arithmetic number, because the mean of its divisors is an integer number (162968904).

Almost surely, 22120012212 is an apocalyptic number.

It is an amenable number.

2120012212 is a deficient number, since it is larger than the sum of its proper divisors (1791241484).

2120012212 is a wasteful number, since it uses less digits than its factorization.

2120012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237687 (or 237685 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2120012212 is about 46043.5903465401. The cubic root of 2120012212 is about 1284.6341243621.

Adding to 2120012212 its reverse (2122100212), we get a palindrome (4242112424).

The spelling of 2120012212 in words is "two billion, one hundred twenty million, twelve thousand, two hundred twelve".

Divisors: 1 2 4 23 46 92 97 194 388 2231 4462 8924 237563 475126 950252 5463949 10927898 21855796 23043611 46087222 92174444 530003053 1060006106 2120012212