222891020 has 48 divisors (see below), whose sum is σ = 511999488. Its totient is φ = 80832960.

The previous prime is 222891017. The next prime is 222891041. The reversal of 222891020 is 20198222.

It is a super-3 number, since 3×222891020³ (a number of 26 digits) contains 333 as substring.

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, 96317 + ... + 98603.

It is an arithmetic number, because the mean of its divisors is an integer number (10666656).

Almost surely, 2^222891020 is an apocalyptic number.

222891020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222891020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255999744).

222891020 is an abundant number, since it is smaller than the sum of its proper divisors (289108468).

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

222891020 is a wasteful number, since it uses less digits than its factorization.

222891020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750 (or 2748 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 222891020 is about 14929.5351568627. The cubic root of 222891020 is about 606.3138988162.

The spelling of 222891020 in words is "two hundred twenty-two million, eight hundred ninety-one thousand, twenty".