1012100011002 has 24 divisors (see below), whose sum is σ = 2246368318740. Its totient is φ = 329138214720.

The previous prime is 1012100010983. The next prime is 1012100011007. The reversal of 1012100011002 is 2001100012101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1011635651601 + 464359401 = 1005801^2 + 21549^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1012100011007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 685703877 + ... + 685705352.

Almost surely, 2^{1012100011002} is an apocalyptic number.

1012100011002 is an abundant number, since it is smaller than the sum of its proper divisors (1234268307738).

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

1012100011002 is a wasteful number, since it uses less digits than its factorization.

1012100011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371409278 (or 1371409275 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1012100011002 its reverse (2001100012101), we get a palindrome (3013200023103).

The spelling of 1012100011002 in words is "one trillion, twelve billion, one hundred million, eleven thousand, two".