21210000210022 has 16 divisors (see below), whose sum is σ = 35367543775872. Its totient is φ = 9473449224960.

The previous prime is 21210000209921. The next prime is 21210000210037. The reversal of 21210000210022 is 22001200001212.

It is a happy number.

It is a super-3 number, since 3×21210000210022³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 21210000209984 and 21210000210011.

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, 13157567563 + ... + 13157569174.

It is an arithmetic number, because the mean of its divisors is an integer number (2210471485992).

Almost surely, 2^{21210000210022} is an apocalyptic number.

21210000210022 is a deficient number, since it is larger than the sum of its proper divisors (14157543565850).

21210000210022 is a wasteful number, since it uses less digits than its factorization.

21210000210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26315136783.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21210000210022 its reverse (22001200001212), we get a palindrome (43211200211234).

The spelling of 21210000210022 in words is "twenty-one trillion, two hundred ten billion, two hundred ten thousand, twenty-two".