7222228900 has 18 divisors (see below), whose sum is σ = 15672236930. Its totient is φ = 2888891520.

The previous prime is 7222228883. The next prime is 7222228913. The reversal of 7222228900 is 98222227.

It can be written as a sum of positive squares in 3 ways, for example, as 1367224576 + 5855004324 = 36976^2 + 76518^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36111045 + ... + 36111244.

Almost surely, 2^7222228900 is an apocalyptic number.

It is an amenable number.

7222228900 is an abundant number, since it is smaller than the sum of its proper divisors (8450008030).

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

7222228900 is a wasteful number, since it uses less digits than its factorization.

7222228900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72222303 (or 72222296 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 7222228900 is about 84983.6978484697. The cubic root of 7222228900 is about 1932.9639282987.

The spelling of 7222228900 in words is "seven billion, two hundred twenty-two million, two hundred twenty-eight thousand, nine hundred".