22215131555102 has 4 divisors (see below), whose sum is σ = 33322697332656. Its totient is φ = 11107565777550.

The previous prime is 22215131555101. The next prime is 22215131555213. The reversal of 22215131555102 is 20155513151222.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22215131555101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5553782888774 + ... + 5553782888777.

It is an arithmetic number, because the mean of its divisors is an integer number (8330674333164).

Almost surely, 2^{22215131555102} is an apocalyptic number.

22215131555102 is a deficient number, since it is larger than the sum of its proper divisors (11107565777554).

22215131555102 is a wasteful number, since it uses less digits than its factorization.

22215131555102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11107565777553.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 22215131555102 in words is "twenty-two trillion, two hundred fifteen billion, one hundred thirty-one million, five hundred fifty-five thousand, one hundred two".