21210022001022 has 16 divisors (see below), whose sum is σ = 42438592365312. Its totient is φ = 7066915939800.

The previous prime is 21210022000901. The next prime is 21210022001033. The reversal of 21210022001022 is 22010022001212.

It is a junction number, because it is equal to n+sod(n) for n = 21210022000992 and 21210022001010.

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, 772833604 + ... + 772861047.

It is an arithmetic number, because the mean of its divisors is an integer number (2652412022832).

Almost surely, 2^{21210022001022} is an apocalyptic number.

21210022001022 is an abundant number, since it is smaller than the sum of its proper divisors (21228570364290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21210022001022 is a wasteful number, since it uses less digits than its factorization.

21210022001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545696943.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21210022001022 its reverse (22010022001212), we get a palindrome (43220044002234).

The spelling of 21210022001022 in words is "twenty-one trillion, two hundred ten billion, twenty-two million, one thousand, twenty-two".