20211212102022 has 48 divisors (see below), whose sum is σ = 45589550911632. Its totient is φ = 6710856376320.

The previous prime is 20211212102009. The next prime is 20211212102033. The reversal of 20211212102022 is 22020121211202.

It is a happy number.

20211212102022 is a `hidden beast` number, since 20 + 211 + 21 + 210 + 202 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20211212101986 and 20211212102004.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 80783379 + ... + 81033182.

It is an arithmetic number, because the mean of its divisors is an integer number (949782310659).

Almost surely, 2^{20211212102022} is an apocalyptic number.

20211212102022 is an abundant number, since it is smaller than the sum of its proper divisors (25378338809610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20211212102022 is a wasteful number, since it uses less digits than its factorization.

20211212102022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161816835 (or 161816823 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20211212102022 its reverse (22020121211202), we get a palindrome (42231333313224).

The spelling of 20211212102022 in words is "twenty trillion, two hundred eleven billion, two hundred twelve million, one hundred two thousand, twenty-two".