121112022221012 has 24 divisors (see below), whose sum is σ = 224452942209216. Its totient is φ = 56983863788928.

The previous prime is 121112022221009. The next prime is 121112022221027. The reversal of 121112022221012 is 210122220211121.

It is a super-2 number, since 2×121112022221012² (a number of 29 digits) contains 22 as substring.

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, 156314168 + ... + 157087055.

It is an arithmetic number, because the mean of its divisors is an integer number (9352205925384).

Almost surely, 2^{121112022221012} is an apocalyptic number.

It is an amenable number.

121112022221012 is a deficient number, since it is larger than the sum of its proper divisors (103340919988204).

121112022221012 is a wasteful number, since it uses less digits than its factorization.

121112022221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313406927 (or 313406925 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121112022221012 its reverse (210122220211121), we get a palindrome (331234242432133).

The spelling of 121112022221012 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty-two million, two hundred twenty-one thousand, twelve".