2122000021012 has 12 divisors (see below), whose sum is σ = 3713639155380. Its totient is φ = 1060960262336.

The previous prime is 2122000021007. The next prime is 2122000021013. The reversal of 2122000021012 is 2101200002212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1150758234756 + 971241786256 = 1072734^2 + 985516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2122000020983 and 2122000021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122000021013) 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 3 ways as a sum of consecutive naturals, for example, 9816763 + ... + 10030594.

It is an arithmetic number, because the mean of its divisors is an integer number (309469929615).

Almost surely, 2^{2122000021012} is an apocalyptic number.

It is an amenable number.

2122000021012 is a deficient number, since it is larger than the sum of its proper divisors (1591639134368).

2122000021012 is a wasteful number, since it uses less digits than its factorization.

2122000021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19874090 (or 19874088 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2122000021012 its reverse (2101200002212), we get a palindrome (4223200023224).

The spelling of 2122000021012 in words is "two trillion, one hundred twenty-two billion, twenty-one thousand, twelve".