1012121021232 has 120 divisors (see below), whose sum is σ = 2839923532368. Its totient is φ = 336494592000.

The previous prime is 1012121021159. The next prime is 1012121021257. The reversal of 1012121021232 is 2321201212101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97006288 + ... + 97016720.

Almost surely, 2^{1012121021232} is an apocalyptic number.

1012121021232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012121021232 is an abundant number, since it is smaller than the sum of its proper divisors (1827802511136).

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

1012121021232 is a wasteful number, since it uses less digits than its factorization.

1012121021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12139 (or 12130 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1012121021232 its reverse (2321201212101), we get a palindrome (3333322233333).

The spelling of 1012121021232 in words is "one trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, two hundred thirty-two".