22111121002 has 8 divisors (see below), whose sum is σ = 33167441700. Its totient is φ = 11055307104.

The previous prime is 22111120979. The next prime is 22111121023. The reversal of 22111121002 is 20012111122.

It can be written as a sum of positive squares in 2 ways, for example, as 15765564721 + 6345556281 = 125561^2 + 79659^2 .

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, 13324 + ... + 210712.

Almost surely, 2^22111121002 is an apocalyptic number.

22111121002 is a deficient number, since it is larger than the sum of its proper divisors (11056320698).

22111121002 is a wasteful number, since it uses less digits than its factorization.

22111121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253400.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22111121002 its reverse (20012111122), we get a palindrome (42123232124).

The spelling of 22111121002 in words is "twenty-two billion, one hundred eleven million, one hundred twenty-one thousand, two".