22000020121012 has 24 divisors (see below), whose sum is σ = 39028271498496. Its totient is φ = 10849091882688.

The previous prime is 22000020121003. The next prime is 22000020121019. The reversal of 22000020121012 is 21012102000022.

It is a happy number.

It is a super-3 number, since 3×22000020121012³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22000020120983 and 22000020121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000020121019) 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, 13219773 + ... + 14790619.

It is an arithmetic number, because the mean of its divisors is an integer number (1626177979104).

Almost surely, 2^{22000020121012} is an apocalyptic number.

It is an amenable number.

22000020121012 is a deficient number, since it is larger than the sum of its proper divisors (17028251377484).

22000020121012 is a wasteful number, since it uses less digits than its factorization.

22000020121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618887 (or 1618885 counting only the distinct ones).

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

Adding to 22000020121012 its reverse (21012102000022), we get a palindrome (43012122121034).

The spelling of 22000020121012 in words is "twenty-two trillion, twenty million, one hundred twenty-one thousand, twelve".