20012212353 has 12 divisors (see below), whose sum is σ = 31039350000. Its totient is φ = 11435549832.

The previous prime is 20012212333. The next prime is 20012212357. The reversal of 20012212353 is 35321221002.

It is not a de Polignac number, because 20012212353 - 2⁵ = 20012212321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20012212357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68068603 + ... + 68068896.

It is an arithmetic number, because the mean of its divisors is an integer number (2586612500).

Almost surely, 2^20012212353 is an apocalyptic number.

It is an amenable number.

20012212353 is a deficient number, since it is larger than the sum of its proper divisors (11027137647).

20012212353 is a wasteful number, since it uses less digits than its factorization.

20012212353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136137516 (or 136137509 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20012212353 its reverse (35321221002), we get a palindrome (55333433355).

The spelling of 20012212353 in words is "twenty billion, twelve million, two hundred twelve thousand, three hundred fifty-three".