22212262 has 4 divisors (see below), whose sum is σ = 33318396. Its totient is φ = 11106130.

The previous prime is 22212257. The next prime is 22212271. The reversal of 22212262 is 26221222.

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

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, 5553064 + ... + 5553067.

It is an arithmetic number, because the mean of its divisors is an integer number (8329599).

Almost surely, 2^22212262 is an apocalyptic number.

22212262 is a deficient number, since it is larger than the sum of its proper divisors (11106134).

22212262 is a wasteful number, since it uses less digits than its factorization.

22212262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11106133.

The product of its digits is 384, while the sum is 19.

The square root of 22212262 is about 4712.9886484056. The cubic root of 22212262 is about 281.1022116063.

Adding to 22212262 its reverse (26221222), we get a palindrome (48433484).

The spelling of 22212262 in words is "twenty-two million, two hundred twelve thousand, two hundred sixty-two".