220121555004352 has 28 divisors (see below), whose sum is σ = 436808612543080. Its totient is φ = 110059542395136.

The previous prime is 220121555004349. The next prime is 220121555004451. The reversal of 220121555004352 is 253400555121022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13537602 + ... + 24970177.

Almost surely, 2^{220121555004352} is an apocalyptic number.

It is an amenable number.

220121555004352 is a deficient number, since it is larger than the sum of its proper divisors (216687057538728).

220121555004352 is an equidigital number, since it uses as much as digits as its factorization.

220121555004352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38597108 (or 38597098 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 220121555004352 in words is "two hundred twenty trillion, one hundred twenty-one billion, five hundred fifty-five million, four thousand, three hundred fifty-two".