22010142121 has 12 divisors (see below), whose sum is σ = 24248896756. Its totient is φ = 19962961920.

The previous prime is 22010142017. The next prime is 22010142157. The reversal of 22010142121 is 12124101022.

It can be written as a sum of positive squares in 2 ways, for example, as 11490768025 + 10519374096 = 107195^2 + 102564^2 .

It is not a de Polignac number, because 22010142121 - 2⁹ = 22010141609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22010142095 and 22010142104.

It is not an unprimeable number, because it can be changed into a prime (22010142221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157656 + ... + 262441.

Almost surely, 2^22010142121 is an apocalyptic number.

It is an amenable number.

22010142121 is a deficient number, since it is larger than the sum of its proper divisors (2238754635).

22010142121 is a wasteful number, since it uses less digits than its factorization.

22010142121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420552 (or 420541 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22010142121 its reverse (12124101022), we get a palindrome (34134243143).

The spelling of 22010142121 in words is "twenty-two billion, ten million, one hundred forty-two thousand, one hundred twenty-one".