20021200210022 has 16 divisors (see below), whose sum is σ = 33561036273744. Its totient is φ = 8878581024000.

The previous prime is 20021200209991. The next prime is 20021200210049. The reversal of 20021200210022 is 22001200212002.

It is a junction number, because it is equal to n+sod(n) for n = 20021200209979 and 20021200210006.

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 7 ways as a sum of consecutive naturals, for example, 11098225379 + ... + 11098227182.

It is an arithmetic number, because the mean of its divisors is an integer number (2097564767109).

Almost surely, 2^{20021200210022} is an apocalyptic number.

20021200210022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021200210022 is a deficient number, since it is larger than the sum of its proper divisors (13539836063722).

20021200210022 is a wasteful number, since it uses less digits than its factorization.

20021200210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22196452615.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20021200210022 its reverse (22001200212002), we get a palindrome (42022400422024).

The spelling of 20021200210022 in words is "twenty trillion, twenty-one billion, two hundred million, two hundred ten thousand, twenty-two".