121001022012 has 48 divisors (see below), whose sum is σ = 307005870080. Its totient is φ = 36869611968.

The previous prime is 121001022007. The next prime is 121001022019. The reversal of 121001022012 is 210220100121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001022019) 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, 3749212 + ... + 3781347.

Almost surely, 2^121001022012 is an apocalyptic number.

121001022012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121001022012 is an abundant number, since it is smaller than the sum of its proper divisors (186004848068).

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

121001022012 is a wasteful number, since it uses less digits than its factorization.

121001022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7530682 (or 7530680 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121001022012 its reverse (210220100121), we get a palindrome (331221122133).

The spelling of 121001022012 in words is "one hundred twenty-one billion, one million, twenty-two thousand, twelve".