22121302223016 has 48 divisors (see below), whose sum is σ = 59924748136500. Its totient is φ = 7372181198592.

The previous prime is 22121302222991. The next prime is 22121302223029. The reversal of 22121302223016 is 61032220312122.

22121302223016 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 130 + 222 + 301 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22071711386916 + 49590836100 = 4698054^2 + 222690^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32708971 + ... + 33378426.

Almost surely, 2^{22121302223016} is an apocalyptic number.

It is an amenable number.

22121302223016 is an abundant number, since it is smaller than the sum of its proper divisors (37803445913484).

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

22121302223016 is a wasteful number, since it uses less digits than its factorization.

22121302223016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66092058 (or 66092051 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 22121302223016 its reverse (61032220312122), we get a palindrome (83153522535138).

The spelling of 22121302223016 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred two million, two hundred twenty-three thousand, sixteen".