122111120120010 has 128 divisors (see below), whose sum is σ = 335329386762240. Its totient is φ = 27878130284544.

The previous prime is 122111120119991. The next prime is 122111120120027. The reversal of 122111120120010 is 10021021111221.

It is a happy number.

It is a super-2 number, since 2×122111120120010² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 611137242 + ... + 611337018.

It is an arithmetic number, because the mean of its divisors is an integer number (2619760834080).

Almost surely, 2^{122111120120010} is an apocalyptic number.

122111120120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122111120120010 is an abundant number, since it is smaller than the sum of its proper divisors (213218266642230).

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

122111120120010 is a wasteful number, since it uses less digits than its factorization.

122111120120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203220.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122111120120010 its reverse (10021021111221), we get a palindrome (132132141231231).

The spelling of 122111120120010 in words is "one hundred twenty-two trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty thousand, ten".