122112012121010 has 16 divisors (see below), whose sum is σ = 232731128983896. Its totient is φ = 45971581033728.

The previous prime is 122112012120919. The next prime is 122112012121067. The reversal of 122112012121010 is 10121210211221.

It can be written as a sum of positive squares in 4 ways, for example, as 112398311665249 + 9713700455761 = 10601807^2 + 3116681^2 .

It is a super-2 number, since 2×122112012121010² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 122112012121010.

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, 359152976657 + ... + 359152976996.

Almost surely, 2^{122112012121010} is an apocalyptic number.

122112012121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122112012121010 is a deficient number, since it is larger than the sum of its proper divisors (110619116862886).

122112012121010 is a wasteful number, since it uses less digits than its factorization.

122112012121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718305953677.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122112012121010 its reverse (10121210211221), we get a palindrome (132233222332231).

The spelling of 122112012121010 in words is "one hundred twenty-two trillion, one hundred twelve billion, twelve million, one hundred twenty-one thousand, ten".