21210012101022 has 8 divisors (see below), whose sum is σ = 42420024202056. Its totient is φ = 7070004033672.

The previous prime is 21210012101021. The next prime is 21210012101023. The reversal of 21210012101022 is 22010121001212.

It is an interprime number because it is at equal distance from previous prime (21210012101021) and next prime (21210012101023).

It is a sphenic number, since it is the product of 3 distinct primes.

21210012101022 is an admirable number.

It is a super-2 number, since 2×21210012101022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21210012100992 and 21210012101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210012101021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1767501008413 + ... + 1767501008424.

It is an arithmetic number, because the mean of its divisors is an integer number (5302503025257).

Almost surely, 2^{21210012101022} is an apocalyptic number.

21210012101022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21210012101022 is a wasteful number, since it uses less digits than its factorization.

21210012101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535002016842.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21210012101022 its reverse (22010121001212), we get a palindrome (43220133102234).

The spelling of 21210012101022 in words is "twenty-one trillion, two hundred ten billion, twelve million, one hundred one thousand, twenty-two".