22212051 has 8 divisors (see below), whose sum is σ = 29649360. Its totient is φ = 14791392.

The previous prime is 22212049. The next prime is 22212077. The reversal of 22212051 is 15021222.

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

It is not a de Polignac number, because 22212051 - 2¹ = 22212049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22212051.

It is not an unprimeable number, because it can be changed into a prime (22210051) 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, 616 + ... + 6693.

It is an arithmetic number, because the mean of its divisors is an integer number (3706170).

Almost surely, 2^22212051 is an apocalyptic number.

22212051 is a deficient number, since it is larger than the sum of its proper divisors (7437309).

22212051 is a wasteful number, since it uses less digits than its factorization.

22212051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 22212051 is about 4712.9662634057. The cubic root of 22212051 is about 281.1013215160.

Adding to 22212051 its reverse (15021222), we get a palindrome (37233273).

The spelling of 22212051 in words is "twenty-two million, two hundred twelve thousand, fifty-one".