210100222131 has 4 divisors (see below), whose sum is σ = 280133629512. Its totient is φ = 140066814752.

The previous prime is 210100222127. The next prime is 210100222139. The reversal of 210100222131 is 131222001012.

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 210100222131 - 2² = 210100222127 is a prime.

It is a super-2 number, since 2×210100222131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210100222131.

It is not an unprimeable number, because it can be changed into a prime (210100222139) 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, 35016703686 + ... + 35016703691.

It is an arithmetic number, because the mean of its divisors is an integer number (70033407378).

Almost surely, 2^210100222131 is an apocalyptic number.

210100222131 is a deficient number, since it is larger than the sum of its proper divisors (70033407381).

210100222131 is an equidigital number, since it uses as much as digits as its factorization.

210100222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70033407380.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 210100222131 its reverse (131222001012), we get a palindrome (341322223143).

The spelling of 210100222131 in words is "two hundred ten billion, one hundred million, two hundred twenty-two thousand, one hundred thirty-one".