20111022010 has 32 divisors (see below), whose sum is σ = 36707090112. Its totient is φ = 7932063360.

The previous prime is 20111022007. The next prime is 20111022067. The reversal of 20111022010 is 1022011102.

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, 409177 + ... + 455683.

It is an arithmetic number, because the mean of its divisors is an integer number (1147096566).

Almost surely, 2^20111022010 is an apocalyptic number.

20111022010 is a deficient number, since it is larger than the sum of its proper divisors (16596068102).

20111022010 is a wasteful number, since it uses less digits than its factorization.

20111022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47118.

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

Adding to 20111022010 its reverse (1022011102), we get a palindrome (21133033112).

The spelling of 20111022010 in words is "twenty billion, one hundred eleven million, twenty-two thousand, ten".