20013212222215 has 32 divisors (see below), whose sum is σ = 24302026143360. Its totient is φ = 15821130124800.

The previous prime is 20013212222183. The next prime is 20013212222233. The reversal of 20013212222215 is 51222221231002.

It is not a de Polignac number, because 20013212222215 - 2⁵ = 20013212222183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20013212222215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126313945 + ... + 126472285.

It is an arithmetic number, because the mean of its divisors is an integer number (759438316980).

Almost surely, 2^{20013212222215} is an apocalyptic number.

20013212222215 is a deficient number, since it is larger than the sum of its proper divisors (4288813921145).

20013212222215 is a wasteful number, since it uses less digits than its factorization.

20013212222215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159403.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 20013212222215 its reverse (51222221231002), we get a palindrome (71235433453217).

The spelling of 20013212222215 in words is "twenty trillion, thirteen billion, two hundred twelve million, two hundred twenty-two thousand, two hundred fifteen".