20000122210 has 32 divisors (see below), whose sum is σ = 36440295552. Its totient is φ = 7902681600.

The previous prime is 20000122201. The next prime is 20000122249. The reversal of 20000122210 is 1222100002.

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, 351235 + ... + 404185.

It is an arithmetic number, because the mean of its divisors is an integer number (1138759236).

Almost surely, 2^20000122210 is an apocalyptic number.

20000122210 is a deficient number, since it is larger than the sum of its proper divisors (16440173342).

20000122210 is a wasteful number, since it uses less digits than its factorization.

20000122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53418.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20000122210 its reverse (1222100002), we get a palindrome (21222222212).

The spelling of 20000122210 in words is "twenty billion, one hundred twenty-two thousand, two hundred ten".