222421970 has 32 divisors (see below), whose sum is σ = 408457728. Its totient is φ = 87187968.

The previous prime is 222421957. The next prime is 222421981. The reversal of 222421970 is 79124222.

222421970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 102719 + ... + 104861.

It is an arithmetic number, because the mean of its divisors is an integer number (12764304).

Almost surely, 2^222421970 is an apocalyptic number.

222421970 is a deficient number, since it is larger than the sum of its proper divisors (186035758).

222421970 is a wasteful number, since it uses less digits than its factorization.

222421970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 222421970 is about 14913.8180892755. The cubic root of 222421970 is about 605.8882928285. Note that the first 3 decimals are identical.

The spelling of 222421970 in words is "two hundred twenty-two million, four hundred twenty-one thousand, nine hundred seventy".