22001021122 has 8 divisors (see below), whose sum is σ = 33769009296. Its totient is φ = 10744684692.

The previous prime is 22001021051. The next prime is 22001021173. The reversal of 22001021122 is 22112010022.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127912828 + ... + 127912999.

It is an arithmetic number, because the mean of its divisors is an integer number (4221126162).

Almost surely, 2^22001021122 is an apocalyptic number.

22001021122 is a deficient number, since it is larger than the sum of its proper divisors (11767988174).

22001021122 is a wasteful number, since it uses less digits than its factorization.

22001021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255825872.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22001021122 its reverse (22112010022), we get a palindrome (44113031144).

The spelling of 22001021122 in words is "twenty-two billion, one million, twenty-one thousand, one hundred twenty-two".