20221220212102 has 128 divisors (see below), whose sum is σ = 37689266055168. Its totient is φ = 7923392870400.

The previous prime is 20221220212097. The next prime is 20221220212159. The reversal of 20221220212102 is 20121202212202.

It is a self number, because there is not a number n which added to its sum of digits gives 20221220212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11668331628 + ... + 11668333360.

It is an arithmetic number, because the mean of its divisors is an integer number (294447391056).

Almost surely, 2^{20221220212102} is an apocalyptic number.

20221220212102 is a deficient number, since it is larger than the sum of its proper divisors (17468045843066).

20221220212102 is a wasteful number, since it uses less digits than its factorization.

20221220212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20221220212102 its reverse (20121202212202), we get a palindrome (40342422424304).

The spelling of 20221220212102 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twelve thousand, one hundred two".