222122420431 has 4 divisors (see below), whose sum is σ = 222124183864. Its totient is φ = 222120657000.

The previous prime is 222122420419. The next prime is 222122420473. The reversal of 222122420431 is 134024221222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222122420431 - 2²⁹ = 221585549519 is a prime.

It is a super-2 number, since 2×222122420431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222122420396 and 222122420405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122420231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676920 + ... + 949981.

It is an arithmetic number, because the mean of its divisors is an integer number (55531045966).

Almost surely, 2^222122420431 is an apocalyptic number.

222122420431 is a deficient number, since it is larger than the sum of its proper divisors (1763433).

222122420431 is a wasteful number, since it uses less digits than its factorization.

222122420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763432.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 222122420431 its reverse (134024221222), we get a palindrome (356146641653).

The spelling of 222122420431 in words is "two hundred twenty-two billion, one hundred twenty-two million, four hundred twenty thousand, four hundred thirty-one".