20201220010 has 16 divisors (see below), whose sum is σ = 36370842336. Its totient is φ = 8078566608.

The previous prime is 20201219989. The next prime is 20201220031. The reversal of 20201220010 is 1002210202.

It is an interprime number because it is at equal distance from previous prime (20201219989) and next prime (20201220031).

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 7 ways as a sum of consecutive naturals, for example, 195624 + ... + 280483.

It is an arithmetic number, because the mean of its divisors is an integer number (2273177646).

Almost surely, 2^20201220010 is an apocalyptic number.

20201220010 is a deficient number, since it is larger than the sum of its proper divisors (16169622326).

20201220010 is a wasteful number, since it uses less digits than its factorization.

20201220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480357.

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

Adding to 20201220010 its reverse (1002210202), we get a palindrome (21203430212).

The spelling of 20201220010 in words is "twenty billion, two hundred one million, two hundred twenty thousand, ten".