2101220220022 has 32 divisors (see below), whose sum is σ = 3949301260800. Its totient is φ = 814543361280.

The previous prime is 2101220220017. The next prime is 2101220220023. The reversal of 2101220220022 is 2200220221012.

It is a junction number, because it is equal to n+sod(n) for n = 2101220219978 and 2101220220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101220220023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34251483 + ... + 34312774.

It is an arithmetic number, because the mean of its divisors is an integer number (123415664400).

Almost surely, 2^{2101220220022} is an apocalyptic number.

2101220220022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101220220022 is a deficient number, since it is larger than the sum of its proper divisors (1848081040778).

2101220220022 is a wasteful number, since it uses less digits than its factorization.

2101220220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68564476.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2101220220022 its reverse (2200220221012), we get a palindrome (4301440441034).

The spelling of 2101220220022 in words is "two trillion, one hundred one billion, two hundred twenty million, two hundred twenty thousand, twenty-two".