20212200331 has 4 divisors (see below), whose sum is σ = 20214108664. Its totient is φ = 20210292000.

The previous prime is 20212200319. The next prime is 20212200341. The reversal of 20212200331 is 13300221202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20212200331 - 2¹³ = 20212192139 is a prime.

It is a super-2 number, since 2×20212200331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212200301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938190 + ... + 959491.

It is an arithmetic number, because the mean of its divisors is an integer number (5053527166).

Almost surely, 2^20212200331 is an apocalyptic number.

20212200331 is a deficient number, since it is larger than the sum of its proper divisors (1908333).

20212200331 is a wasteful number, since it uses less digits than its factorization.

20212200331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908332.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20212200331 its reverse (13300221202), we get a palindrome (33512421533).

The spelling of 20212200331 in words is "twenty billion, two hundred twelve million, two hundred thousand, three hundred thirty-one".