22212144402 has 16 divisors (see below), whose sum is σ = 50770615872. Its totient is φ = 6346326960.

The previous prime is 22212144391. The next prime is 22212144413. The reversal of 22212144402 is 20444121222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22212144391) and next prime (22212144413).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264430249 + ... + 264430332.

It is an arithmetic number, because the mean of its divisors is an integer number (3173163492).

Almost surely, 2^22212144402 is an apocalyptic number.

22212144402 is an abundant number, since it is smaller than the sum of its proper divisors (28558471470).

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

22212144402 is a wasteful number, since it uses less digits than its factorization.

22212144402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528860593.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 22212144402 its reverse (20444121222), we get a palindrome (42656265624).

The spelling of 22212144402 in words is "twenty-two billion, two hundred twelve million, one hundred forty-four thousand, four hundred two".