21002211010022 has 16 divisors (see below), whose sum is σ = 34368597720144. Its totient is φ = 9546086400000.

The previous prime is 21002211010009. The next prime is 21002211010061. The reversal of 21002211010022 is 22001011220012.

It is a junction number, because it is equal to n+sod(n) for n = 21002211009979 and 21002211010006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18081479 + ... + 19207922.

It is an arithmetic number, because the mean of its divisors is an integer number (2148037357509).

Almost surely, 2^{21002211010022} is an apocalyptic number.

21002211010022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21002211010022 is a deficient number, since it is larger than the sum of its proper divisors (13366386710122).

21002211010022 is a wasteful number, since it uses less digits than its factorization.

21002211010022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37315015.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21002211010022 its reverse (22001011220012), we get a palindrome (43003222230034).

The spelling of 21002211010022 in words is "twenty-one trillion, two billion, two hundred eleven million, ten thousand, twenty-two".