22121342031 has 8 divisors (see below), whose sum is σ = 29574199600. Its totient is φ = 14708022912.

The previous prime is 22121342027. The next prime is 22121342069. The reversal of 22121342031 is 13024312122.

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

It is not a de Polignac number, because 22121342031 - 2² = 22121342027 is a prime.

It is a super-2 number, since 2×22121342031² (a number of 21 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 = 22121341989 and 22121342007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121341031) 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, 9883306 + ... + 9885543.

It is an arithmetic number, because the mean of its divisors is an integer number (3696774950).

Almost surely, 2^22121342031 is an apocalyptic number.

22121342031 is a deficient number, since it is larger than the sum of its proper divisors (7452857569).

22121342031 is a wasteful number, since it uses less digits than its factorization.

22121342031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19769225.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22121342031 its reverse (13024312122), we get a palindrome (35145654153).

The spelling of 22121342031 in words is "twenty-two billion, one hundred twenty-one million, three hundred forty-two thousand, thirty-one".