22502221515422 has 32 divisors (see below), whose sum is σ = 37574559324288. Its totient is φ = 10020523500000.

The previous prime is 22502221515341. The next prime is 22502221515451. The reversal of 22502221515422 is 22451512220522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33064904 + ... + 33738587.

It is an arithmetic number, because the mean of its divisors is an integer number (1174204978884).

Almost surely, 2^{22502221515422} is an apocalyptic number.

22502221515422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22502221515422 is a deficient number, since it is larger than the sum of its proper divisors (15072337808866).

22502221515422 is a wasteful number, since it uses less digits than its factorization.

22502221515422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66803816.

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 22502221515422 its reverse (22451512220522), we get a palindrome (44953733735944).

The spelling of 22502221515422 in words is "twenty-two trillion, five hundred two billion, two hundred twenty-one million, five hundred fifteen thousand, four hundred twenty-two".