121001111202012 has 48 divisors (see below), whose sum is σ = 297317664551040. Its totient is φ = 38195197572672.

The previous prime is 121001111202011. The next prime is 121001111202017. The reversal of 121001111202012 is 210202111100121.

It is a happy number.

It is a super-2 number, since 2×121001111202012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121001111201982 and 121001111202000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001111202011) 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, 108329598 + ... + 109440869.

It is an arithmetic number, because the mean of its divisors is an integer number (6194118011480).

Almost surely, 2^{121001111202012} is an apocalyptic number.

121001111202012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121001111202012 is an abundant number, since it is smaller than the sum of its proper divisors (176316553349028).

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

121001111202012 is a wasteful number, since it uses less digits than its factorization.

121001111202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217772930 (or 217772928 counting only the distinct ones).

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

Adding to 121001111202012 its reverse (210202111100121), we get a palindrome (331203222302133).

The spelling of 121001111202012 in words is "one hundred twenty-one trillion, one billion, one hundred eleven million, two hundred two thousand, twelve".