222121113031 has 8 divisors (see below), whose sum is σ = 235237935744. Its totient is φ = 209292572280.

The previous prime is 222121113017. The next prime is 222121113047. The reversal of 222121113031 is 130311121222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222121113031 - 2⁵ = 222121112999 is a prime.

It is a super-2 number, since 2×222121113031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121113001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72068905 + ... + 72071986.

It is an arithmetic number, because the mean of its divisors is an integer number (29404741968).

Almost surely, 2^222121113031 is an apocalyptic number.

222121113031 is a deficient number, since it is larger than the sum of its proper divisors (13116822713).

222121113031 is a wasteful number, since it uses less digits than its factorization.

222121113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144140981.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 222121113031 its reverse (130311121222), we get a palindrome (352432234253).

The spelling of 222121113031 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred thirteen thousand, thirty-one".