222150900 has 144 divisors (see below), whose sum is σ = 697080384. Its totient is φ = 54405120.

The previous prime is 222150827. The next prime is 222150919. The reversal of 222150900 is 9051222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218794 + ... + 219806.

It is an arithmetic number, because the mean of its divisors is an integer number (4840836).

Almost surely, 2^222150900 is an apocalyptic number.

222150900 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 222150900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348540192).

222150900 is an abundant number, since it is smaller than the sum of its proper divisors (474929484).

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

222150900 is a wasteful number, since it uses less digits than its factorization.

222150900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 222150900 is about 14904.7274379641. The cubic root of 222150900 is about 605.6420568042.

The spelling of 222150900 in words is "two hundred twenty-two million, one hundred fifty thousand, nine hundred".