121001010021012 has 48 divisors (see below), whose sum is σ = 308088295123392. Its totient is φ = 36656767476480.

The previous prime is 121001010020987. The next prime is 121001010021037. The reversal of 121001010021012 is 210120010100121.

It is an interprime number because it is at equal distance from previous prime (121001010020987) and next prime (121001010021037).

It is a super-2 number, since 2×121001010021012² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127089643 + ... + 128038194.

It is an arithmetic number, because the mean of its divisors is an integer number (6418506148404).

Almost surely, 2^{121001010021012} is an apocalyptic number.

121001010021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121001010021012 is an abundant number, since it is smaller than the sum of its proper divisors (187087285102380).

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

121001010021012 is a wasteful number, since it uses less digits than its factorization.

121001010021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255131448 (or 255131446 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121001010021012 its reverse (210120010100121), we get a palindrome (331121020121133).

The spelling of 121001010021012 in words is "one hundred twenty-one trillion, one billion, ten million, twenty-one thousand, twelve".