20021100000022 has 32 divisors (see below), whose sum is σ = 33380610118560. Its totient is φ = 8928615121920.

The previous prime is 20021100000001. The next prime is 20021100000023. The reversal of 20021100000022 is 22000000112002.

It is a junction number, because it is equal to n+sod(n) for n = 20021099999954 and 20021100000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021100000023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71463088 + ... + 71742700.

It is an arithmetic number, because the mean of its divisors is an integer number (1043144066205).

Almost surely, 2^{20021100000022} is an apocalyptic number.

20021100000022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021100000022 is a deficient number, since it is larger than the sum of its proper divisors (13359510118538).

20021100000022 is a wasteful number, since it uses less digits than its factorization.

20021100000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341088.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20021100000022 its reverse (22000000112002), we get a palindrome (42021100112024).

The spelling of 20021100000022 in words is "twenty trillion, twenty-one billion, one hundred million, twenty-two", and thus it is an aban number.