102201212331 has 24 divisors (see below), whose sum is σ = 152491089920. Its totient is φ = 65890810800.

The previous prime is 102201212329. The next prime is 102201212341. The reversal of 102201212331 is 133212102201.

102201212331 is a `hidden beast` number, since 102 + 20 + 1 + 212 + 331 = 666.

It is not a de Polignac number, because 102201212331 - 2¹ = 102201212329 is a prime.

It is a super-2 number, since 2×102201212331² (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 (102201212341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281526 + ... + 532596.

Almost surely, 2^102201212331 is an apocalyptic number.

102201212331 is a deficient number, since it is larger than the sum of its proper divisors (50289877589).

102201212331 is a wasteful number, since it uses less digits than its factorization.

102201212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252567 (or 252564 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 102201212331 its reverse (133212102201), we get a palindrome (235413314532).

The spelling of 102201212331 in words is "one hundred two billion, two hundred one million, two hundred twelve thousand, three hundred thirty-one".