7222214500 has 24 divisors (see below), whose sum is σ = 15773317560. Its totient is φ = 2888885600.

The previous prime is 7222214479. The next prime is 7222214509. The reversal of 7222214500 is 54122227.

It can be written as a sum of positive squares in 4 ways, for example, as 7750656 + 7214463844 = 2784^2 + 84938^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (7222214509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7221715 + ... + 7222714.

It is an arithmetic number, because the mean of its divisors is an integer number (657221565).

Almost surely, 2^7222214500 is an apocalyptic number.

It is an amenable number.

7222214500 is an abundant number, since it is smaller than the sum of its proper divisors (8551103060).

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

7222214500 is a wasteful number, since it uses less digits than its factorization.

7222214500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14444448 (or 14444436 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 7222214500 is about 84983.6131262963. The cubic root of 7222214500 is about 1932.9626436215.

Adding to 7222214500 its reverse (54122227), we get a palindrome (7276336727).

The spelling of 7222214500 in words is "seven billion, two hundred twenty-two million, two hundred fourteen thousand, five hundred".