221222334242031 has 16 divisors (see below), whose sum is σ = 295095209834880. Its totient is φ = 147415509974880.

The previous prime is 221222334242029. The next prime is 221222334242051. The reversal of 221222334242031 is 130242433222122.

It is not a de Polignac number, because 221222334242031 - 2¹ = 221222334242029 is a prime.

It is a super-2 number, since 2×221222334242031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221222334241983 and 221222334242001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222334242051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377031996 + ... + 377618286.

It is an arithmetic number, because the mean of its divisors is an integer number (18443450614680).

Almost surely, 2^{221222334242031} is an apocalyptic number.

221222334242031 is a deficient number, since it is larger than the sum of its proper divisors (73872875592849).

221222334242031 is a wasteful number, since it uses less digits than its factorization.

221222334242031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642406.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 221222334242031 its reverse (130242433222122), we get a palindrome (351464767464153).

The spelling of 221222334242031 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, three hundred thirty-four million, two hundred forty-two thousand, thirty-one".