222150215 has 16 divisors (see below), whose sum is σ = 317910528. Its totient is φ = 145707936.

The previous prime is 222150211. The next prime is 222150241. The reversal of 222150215 is 512051222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222150215 - 2² = 222150211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222150211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137177 + ... + 138786.

It is an arithmetic number, because the mean of its divisors is an integer number (19869408).

Almost surely, 2^222150215 is an apocalyptic number.

222150215 is a deficient number, since it is larger than the sum of its proper divisors (95760313).

222150215 is a wasteful number, since it uses less digits than its factorization.

222150215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275998.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 222150215 is about 14904.7044586600. The cubic root of 222150215 is about 605.6414343066.

The spelling of 222150215 in words is "two hundred twenty-two million, one hundred fifty thousand, two hundred fifteen".