102212210131 has 4 divisors (see below), whose sum is σ = 102214051632. Its totient is φ = 102210368632.

The previous prime is 102212210123. The next prime is 102212210137. The reversal of 102212210131 is 131012212201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131012212201 = 13 ⋅10077862477.

It is a cyclic number.

It is not a de Polignac number, because 102212210131 - 2³ = 102212210123 is a prime.

It is a super-2 number, since 2×102212210131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102212210137) 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, 834820 + ... + 949393.

It is an arithmetic number, because the mean of its divisors is an integer number (25553512908).

Almost surely, 2^102212210131 is an apocalyptic number.

102212210131 is a deficient number, since it is larger than the sum of its proper divisors (1841501).

102212210131 is an equidigital number, since it uses as much as digits as its factorization.

102212210131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841500.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 102212210131 its reverse (131012212201), we get a palindrome (233224422332).

The spelling of 102212210131 in words is "one hundred two billion, two hundred twelve million, two hundred ten thousand, one hundred thirty-one".