222012111131 has 16 divisors (see below), whose sum is σ = 231866685600. Its totient is φ = 212305701888.

The previous prime is 222012111119. The next prime is 222012111143. The reversal of 222012111131 is 131111210222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222012111119) and next prime (222012111143).

It is not a de Polignac number, because 222012111131 - 2²² = 222007916827 is a prime.

It is a super-2 number, since 2×222012111131² (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 (222012111151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8847755 + ... + 8872811.

It is an arithmetic number, because the mean of its divisors is an integer number (14491667850).

Almost surely, 2^222012111131 is an apocalyptic number.

222012111131 is a deficient number, since it is larger than the sum of its proper divisors (9854574469).

222012111131 is a wasteful number, since it uses less digits than its factorization.

222012111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27998.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 222012111131 its reverse (131111210222), we get a palindrome (353123321353).

Subtracting from 222012111131 its reverse (131111210222), we obtain a palindrome (90900900909).

The spelling of 222012111131 in words is "two hundred twenty-two billion, twelve million, one hundred eleven thousand, one hundred thirty-one".