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122110212120220 = 2256105510606011
BaseRepresentation
bin11011110000111011111111…
…110100010001111010011100
3121000100121210122011200112001
4123300323333310101322130
5112001123203300321340
61111412353530052044
734502112614230042
oct3360737764217234
9530317718150461
10122110212120220
11359a9717376175
121184193ab7a024
135319c360c9b5c
142222246d5c392
15e1b57817b29a
hex6f0effd11e9c

122110212120220 has 12 divisors (see below), whose sum is σ = 256431445452504. Its totient is φ = 48844084848080.

The previous prime is 122110212120191. The next prime is 122110212120229. The reversal of 122110212120220 is 22021212011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122110212120229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3052755302986 + ... + 3052755303025.

It is an arithmetic number, because the mean of its divisors is an integer number (21369287121042).

Almost surely, 2122110212120220 is an apocalyptic number.

122110212120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122110212120220 is an abundant number, since it is smaller than the sum of its proper divisors (134321233332284).

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

122110212120220 is a wasteful number, since it uses less digits than its factorization.

122110212120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105510606020 (or 6105510606018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122110212120220 its reverse (22021212011221), we get a palindrome (144131424131441).

The spelling of 122110212120220 in words is "one hundred twenty-two trillion, one hundred ten billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6105510606011 12211021212022 24422042424044 30527553030055 61055106060110 122110212120220