22215515112151 has 2 divisors, whose sum is σ = 22215515112152. Its totient is φ = 22215515112150.

The previous prime is 22215515112107. The next prime is 22215515112169. The reversal of 22215515112151 is 15121151551222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22215515112151 - 2³¹ = 22213367628503 is a prime.

It is a super-2 number, since 2×22215515112151² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22215515112851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11107757556075 + 11107757556076.

It is an arithmetic number, because the mean of its divisors is an integer number (11107757556076).

Almost surely, 2^{22215515112151} is an apocalyptic number.

22215515112151 is a deficient number, since it is larger than the sum of its proper divisors (1).

22215515112151 is an equidigital number, since it uses as much as digits as its factorization.

22215515112151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10000, while the sum is 34.

Adding to 22215515112151 its reverse (15121151551222), we get a palindrome (37336666663373).

The spelling of 22215515112151 in words is "twenty-two trillion, two hundred fifteen billion, five hundred fifteen million, one hundred twelve thousand, one hundred fifty-one".