121202021112 has 16 divisors (see below), whose sum is σ = 303005052840. Its totient is φ = 40400673696.

The previous prime is 121202021089. The next prime is 121202021113. The reversal of 121202021112 is 211120202121.

It is a junction number, because it is equal to n+sod(n) for n = 121202021091 and 121202021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202021113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525042083 + ... + 2525042130.

Almost surely, 2^121202021112 is an apocalyptic number.

121202021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121202021112 is an abundant number, since it is smaller than the sum of its proper divisors (181803031728).

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

121202021112 is a wasteful number, since it uses less digits than its factorization.

121202021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050084222 (or 5050084218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121202021112 its reverse (211120202121), we get a palindrome (332322223233).

The spelling of 121202021112 in words is "one hundred twenty-one billion, two hundred two million, twenty-one thousand, one hundred twelve".