12221210222051 has 2 divisors, whose sum is σ = 12221210222052. Its totient is φ = 12221210222050.

The previous prime is 12221210222003. The next prime is 12221210222119. The reversal of 12221210222051 is 15022201212221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12221210222051 - 2²² = 12221206027747 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221210222651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110605111025 + 6110605111026.

It is an arithmetic number, because the mean of its divisors is an integer number (6110605111026).

Almost surely, 2^{12221210222051} is an apocalyptic number.

12221210222051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221210222051 is an equidigital number, since it uses as much as digits as its factorization.

12221210222051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 12221210222051 its reverse (15022201212221), we get a palindrome (27243411434272).

The spelling of 12221210222051 in words is "twelve trillion, two hundred twenty-one billion, two hundred ten million, two hundred twenty-two thousand, fifty-one".