22000203212131 has 4 divisors (see below), whose sum is σ = 22000276973200. Its totient is φ = 22000129451064.

The previous prime is 22000203212059. The next prime is 22000203212147. The reversal of 22000203212131 is 13121230200022.

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 22000203212131 - 2⁹ = 22000203211619 is a prime.

It is a super-2 number, since 2×22000203212131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22000203212099 and 22000203212108.

It is not an unprimeable number, because it can be changed into a prime (22000203212431) 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, 36431316 + ... + 37030273.

It is an arithmetic number, because the mean of its divisors is an integer number (5500069243300).

Almost surely, 2^{22000203212131} is an apocalyptic number.

22000203212131 is a deficient number, since it is larger than the sum of its proper divisors (73761069).

22000203212131 is an equidigital number, since it uses as much as digits as its factorization.

22000203212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73761068.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22000203212131 its reverse (13121230200022), we get a palindrome (35121433412153).

The spelling of 22000203212131 in words is "twenty-two trillion, two hundred three million, two hundred twelve thousand, one hundred thirty-one".