220121496 has 128 divisors (see below), whose sum is σ = 703296000. Its totient is φ = 62487936.

The previous prime is 220121471. The next prime is 220121509. The reversal of 220121496 is 694121022.

220121496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 297495 + ... + 298233.

It is an arithmetic number, because the mean of its divisors is an integer number (5494500).

Almost surely, 2^220121496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220121496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351648000).

220121496 is an abundant number, since it is smaller than the sum of its proper divisors (483174504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220121496 is a wasteful number, since it uses less digits than its factorization.

220121496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 220121496 is about 14836.4920382144. The cubic root of 220121496 is about 603.7921817679.

The spelling of 220121496 in words is "two hundred twenty million, one hundred twenty-one thousand, four hundred ninety-six".