7182021222 has 32 divisors (see below), whose sum is σ = 16026854400. Its totient is φ = 2383986024.

The previous prime is 7182021191. The next prime is 7182021251. The reversal of 7182021222 is 2221202817.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 265338 + ... + 291149.

It is an arithmetic number, because the mean of its divisors is an integer number (500839200).

Almost surely, 2^7182021222 is an apocalyptic number.

7182021222 is an abundant number, since it is smaller than the sum of its proper divisors (8844833178).

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

7182021222 is a wasteful number, since it uses less digits than its factorization.

7182021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556737 (or 556731 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 7182021222 is about 84746.8065593035. The cubic root of 7182021222 is about 1929.3701777672.

The spelling of 7182021222 in words is "seven billion, one hundred eighty-two million, twenty-one thousand, two hundred twenty-two".