22211221012151 has 2 divisors, whose sum is σ = 22211221012152. Its totient is φ = 22211221012150.

The previous prime is 22211221012147. The next prime is 22211221012207. The reversal of 22211221012151 is 15121012211222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22211221012151 - 2² = 22211221012147 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211221012111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105610506075 + 11105610506076.

It is an arithmetic number, because the mean of its divisors is an integer number (11105610506076).

Almost surely, 2^{22211221012151} is an apocalyptic number.

22211221012151 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211221012151 is an equidigital number, since it uses as much as digits as its factorization.

22211221012151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 22211221012151 its reverse (15121012211222), we get a palindrome (37332233223373).

The spelling of 22211221012151 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty-one million, twelve thousand, one hundred fifty-one".