10020120011002 has 4 divisors (see below), whose sum is σ = 15030180016506. Its totient is φ = 5010060005500.

The previous prime is 10020120010997. The next prime is 10020120011021. The reversal of 10020120011002 is 20011002102001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7667145019521 + 2352974991481 = 2768961^2 + 1533941^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10020120011002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505030002749 + ... + 2505030002752.

Almost surely, 2^{10020120011002} is an apocalyptic number.

10020120011002 is a deficient number, since it is larger than the sum of its proper divisors (5010060005504).

10020120011002 is an equidigital number, since it uses as much as digits as its factorization.

10020120011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010060005503.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10020120011002 its reverse (20011002102001), we get a palindrome (30031122113003).

The spelling of 10020120011002 in words is "ten trillion, twenty billion, one hundred twenty million, eleven thousand, two".