22212010121 has 8 divisors (see below), whose sum is σ = 25903219200. Its totient is φ = 19038865524.

The previous prime is 22212010091. The next prime is 22212010141. The reversal of 22212010121 is 12101021222.

It is not a de Polignac number, because 22212010121 - 2¹⁸ = 22211747977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212010096 and 22212010105.

It is not an unprimeable number, because it can be changed into a prime (22212010141) 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, 32378681 + ... + 32379366.

It is an arithmetic number, because the mean of its divisors is an integer number (3237902400).

Almost surely, 2^22212010121 is an apocalyptic number.

It is an amenable number.

22212010121 is a deficient number, since it is larger than the sum of its proper divisors (3691209079).

22212010121 is an frugal number, since it uses more digits than its factorization.

22212010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64758068 (or 64758054 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22212010121 its reverse (12101021222), we get a palindrome (34313031343).

The spelling of 22212010121 in words is "twenty-two billion, two hundred twelve million, ten thousand, one hundred twenty-one".