7213112122 has 8 divisors (see below), whose sum is σ = 10829071872. Its totient is φ = 3603421500.

The previous prime is 7213112119. The next prime is 7213112161. The reversal of 7213112122 is 2212113127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7213112093 and 7213112102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1564404 + ... + 1569007.

It is an arithmetic number, because the mean of its divisors is an integer number (1353633984).

Almost surely, 2^7213112122 is an apocalyptic number.

7213112122 is a deficient number, since it is larger than the sum of its proper divisors (3615959750).

7213112122 is a wasteful number, since it uses less digits than its factorization.

7213112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134564.

The product of its digits is 336, while the sum is 22.

The square root of 7213112122 is about 84930.0425173566. The cubic root of 7213112122 is about 1932.1502449001.

Adding to 7213112122 its reverse (2212113127), we get a palindrome (9425225249).

The spelling of 7213112122 in words is "seven billion, two hundred thirteen million, one hundred twelve thousand, one hundred twenty-two".