7212022 has 4 divisors (see below), whose sum is σ = 10818036. Its totient is φ = 3606010.

The previous prime is 7212019. The next prime is 7212059. The reversal of 7212022 is 2202127.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×7212022² = 104026522656968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7211987 and 7212005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1803004 + ... + 1803007.

It is an arithmetic number, because the mean of its divisors is an integer number (2704509).

Almost surely, 2^7212022 is an apocalyptic number.

7212022 is a deficient number, since it is larger than the sum of its proper divisors (3606014).

7212022 is a wasteful number, since it uses less digits than its factorization.

7212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606013.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 7212022 is about 2685.5208061007. The cubic root of 7212022 is about 193.2052904318.

Adding to 7212022 its reverse (2202127), we get a palindrome (9414149).

The spelling of 7212022 in words is "seven million, two hundred twelve thousand, twenty-two".