22002214122 has 72 divisors (see below), whose sum is σ = 55659794112. Its totient is φ = 6263082000.

The previous prime is 22002214103. The next prime is 22002214139. The reversal of 22002214122 is 22141220022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22002214095 and 22002214104.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 192997 + ... + 285047.

It is an arithmetic number, because the mean of its divisors is an integer number (773052696).

Almost surely, 2^22002214122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22002214122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27829897056).

22002214122 is an abundant number, since it is smaller than the sum of its proper divisors (33657579990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22002214122 is a wasteful number, since it uses less digits than its factorization.

22002214122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92344 (or 92334 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22002214122 its reverse (22141220022), we get a palindrome (44143434144).

The spelling of 22002214122 in words is "twenty-two billion, two million, two hundred fourteen thousand, one hundred twenty-two".