201222112131 has 12 divisors (see below), whose sum is σ = 298509680352. Its totient is φ = 130522450896.

The previous prime is 201222112121. The next prime is 201222112141. The reversal of 201222112131 is 131211222102.

201222112131 is a `hidden beast` number, since 201 + 222 + 112 + 131 = 666.

It is an interprime number because it is at equal distance from previous prime (201222112121) and next prime (201222112141).

It is not a de Polignac number, because 201222112131 - 2¹¹ = 201222110083 is a prime.

It is a super-2 number, since 2×201222112131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201222112121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302134971 + ... + 302135636.

It is an arithmetic number, because the mean of its divisors is an integer number (24875806696).

Almost surely, 2^201222112131 is an apocalyptic number.

201222112131 is a deficient number, since it is larger than the sum of its proper divisors (97287568221).

201222112131 is a wasteful number, since it uses less digits than its factorization.

201222112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604270650 (or 604270647 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 201222112131 its reverse (131211222102), we get a palindrome (332433334233).

The spelling of 201222112131 in words is "two hundred one billion, two hundred twenty-two million, one hundred twelve thousand, one hundred thirty-one".