20212101010 has 16 divisors (see below), whose sum is σ = 38296612800. Its totient is φ = 7659322416.

The previous prime is 20212101001. The next prime is 20212101011. The reversal of 20212101010 is 1010121202.

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

It is not an unprimeable number, because it can be changed into a prime (20212101011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53189550 + ... + 53189929.

It is an arithmetic number, because the mean of its divisors is an integer number (2393538300).

Almost surely, 2^20212101010 is an apocalyptic number.

20212101010 is a deficient number, since it is larger than the sum of its proper divisors (18084511790).

20212101010 is a wasteful number, since it uses less digits than its factorization.

20212101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106379505.

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

Adding to 20212101010 its reverse (1010121202), we get a palindrome (21222222212).

The spelling of 20212101010 in words is "twenty billion, two hundred twelve million, one hundred one thousand, ten".