222920907 has 16 divisors (see below), whose sum is σ = 334709760. Its totient is φ = 130744800.

The previous prime is 222920891. The next prime is 222920909. The reversal of 222920907 is 709029222.

It is not a de Polignac number, because 222920907 - 2⁴ = 222920891 is a prime.

It is a super-3 number, since 3×222920907³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (222920909) 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, 107932 + ... + 109977.

It is an arithmetic number, because the mean of its divisors is an integer number (20919360).

Almost surely, 2^222920907 is an apocalyptic number.

222920907 is a deficient number, since it is larger than the sum of its proper divisors (111788853).

222920907 is a wasteful number, since it uses less digits than its factorization.

222920907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217954.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 222920907 is about 14930.5360586953. The cubic root of 222920907 is about 606.3409974010.

It can be divided in two parts, 222 and 920907, that added together give a palindrome (921129).

The spelling of 222920907 in words is "two hundred twenty-two million, nine hundred twenty thousand, nine hundred seven".