210202111212131 has 2 divisors, whose sum is σ = 210202111212132. Its totient is φ = 210202111212130.

The previous prime is 210202111211977. The next prime is 210202111212139. The reversal of 210202111212131 is 131212111202012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210202111212131 is a prime.

It is a super-2 number, since 2×210202111212131² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210202111212139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105101055606065 + 105101055606066.

It is an arithmetic number, because the mean of its divisors is an integer number (105101055606066).

Almost surely, 2^{210202111212131} is an apocalyptic number.

210202111212131 is a deficient number, since it is larger than the sum of its proper divisors (1).

210202111212131 is an equidigital number, since it uses as much as digits as its factorization.

210202111212131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 210202111212131 its reverse (131212111202012), we get a palindrome (341414222414143).

The spelling of 210202111212131 in words is "two hundred ten trillion, two hundred two billion, one hundred eleven million, two hundred twelve thousand, one hundred thirty-one".