22121304010045 has 16 divisors (see below), whose sum is σ = 27196956376128. Its totient is φ = 17262907205760.

The previous prime is 22121304010033. The next prime is 22121304010067. The reversal of 22121304010045 is 54001040312122.

It is a de Polignac number, because none of the positive numbers 2^k-22121304010045 is a prime.

It is a super-2 number, since 2×22121304010045² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6395619 + ... + 9227488.

It is an arithmetic number, because the mean of its divisors is an integer number (1699809773508).

Almost surely, 2^{22121304010045} is an apocalyptic number.

It is an amenable number.

22121304010045 is a deficient number, since it is larger than the sum of its proper divisors (5075652366083).

22121304010045 is a wasteful number, since it uses less digits than its factorization.

22121304010045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15630060.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 22121304010045 its reverse (54001040312122), we get a palindrome (76122344322167).

The spelling of 22121304010045 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred four million, ten thousand, forty-five".