221131140122 has 32 divisors (see below), whose sum is σ = 347791618944. Its totient is φ = 105329145600.

The previous prime is 221131140107. The next prime is 221131140149. The reversal of 221131140122 is 221041131122.

It is a super-2 number, since 2×221131140122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221131140094 and 221131140103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15708347 + ... + 15722417.

It is an arithmetic number, because the mean of its divisors is an integer number (10868488092).

Almost surely, 2^221131140122 is an apocalyptic number.

221131140122 is a deficient number, since it is larger than the sum of its proper divisors (126660478822).

221131140122 is a wasteful number, since it uses less digits than its factorization.

221131140122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18614.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 221131140122 its reverse (221041131122), we get a palindrome (442172271244).

The spelling of 221131140122 in words is "two hundred twenty-one billion, one hundred thirty-one million, one hundred forty thousand, one hundred twenty-two".