22121302223051 has 2 divisors, whose sum is σ = 22121302223052. Its totient is φ = 22121302223050.

The previous prime is 22121302223039. The next prime is 22121302223077. The reversal of 22121302223051 is 15032220312122.

It is a happy number.

It is an a-pointer prime, because the next prime (22121302223077) can be obtained adding 22121302223051 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22121302223051 - 2¹⁸ = 22121301960907 is a prime.

It is a super-2 number, since 2×22121302223051² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22121302223051.

It is not a weakly prime, because it can be changed into another prime (22121302223351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060651111525 + 11060651111526.

It is an arithmetic number, because the mean of its divisors is an integer number (11060651111526).

Almost surely, 2^{22121302223051} is an apocalyptic number.

22121302223051 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121302223051 is an equidigital number, since it uses as much as digits as its factorization.

22121302223051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 22121302223051 its reverse (15032220312122), we get a palindrome (37153522535173).

The spelling of 22121302223051 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred two million, two hundred twenty-three thousand, fifty-one".