22177126621051 has 4 divisors (see below), whose sum is σ = 22185141487072. Its totient is φ = 22169111755032.

The previous prime is 22177126621049. The next prime is 22177126621061. The reversal of 22177126621051 is 15012662177122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22177126621051 - 2¹ = 22177126621049 is a prime.

It is a super-2 number, since 2×22177126621051² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22177126620989 and 22177126621007.

It is not an unprimeable number, because it can be changed into a prime (22177126621061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4007428860 + ... + 4007434393.

It is an arithmetic number, because the mean of its divisors is an integer number (5546285371768).

Almost surely, 2^{22177126621051} is an apocalyptic number.

22177126621051 is a deficient number, since it is larger than the sum of its proper divisors (8014866021).

22177126621051 is an equidigital number, since it uses as much as digits as its factorization.

22177126621051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8014866020.

The product of its (nonzero) digits is 141120, while the sum is 43.

Adding to 22177126621051 its reverse (15012662177122), we get a palindrome (37189788798173).

The spelling of 22177126621051 in words is "twenty-two trillion, one hundred seventy-seven billion, one hundred twenty-six million, six hundred twenty-one thousand, fifty-one".