220121020012 has 12 divisors (see below), whose sum is σ = 385840193536. Its totient is φ = 109880964720.

The previous prime is 220121019997. The next prime is 220121020033. The reversal of 220121020012 is 210020121022.

It is a happy number.

It is a super-2 number, since 2×220121020012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220121019974 and 220121020001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44883564 + ... + 44888467.

Almost surely, 2^220121020012 is an apocalyptic number.

It is an amenable number.

220121020012 is a deficient number, since it is larger than the sum of its proper divisors (165719173524).

220121020012 is a wasteful number, since it uses less digits than its factorization.

220121020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89772648 (or 89772646 counting only the distinct ones).

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

Adding to 220121020012 its reverse (210020121022), we get a palindrome (430141141034).

It can be divided in two parts, 2201210 and 20012, that added together give a palindrome (2221222).

The spelling of 220121020012 in words is "two hundred twenty billion, one hundred twenty-one million, twenty thousand, twelve".