20011012210 has 32 divisors (see below), whose sum is σ = 41306049792. Its totient is φ = 6837495360.

The previous prime is 20011012157. The next prime is 20011012267. The reversal of 20011012210 is 1221011002.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 467326 + ... + 508345.

It is an arithmetic number, because the mean of its divisors is an integer number (1290814056).

Almost surely, 2^20011012210 is an apocalyptic number.

20011012210 is an abundant number, since it is smaller than the sum of its proper divisors (21295037582).

20011012210 is a wasteful number, since it uses less digits than its factorization.

20011012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975978.

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

Adding to 20011012210 its reverse (1221011002), we get a palindrome (21232023212).

The spelling of 20011012210 in words is "twenty billion, eleven million, twelve thousand, two hundred ten".