210010121100020 has 24 divisors (see below), whose sum is σ = 444387828775968. Its totient is φ = 83362796160800.

The previous prime is 210010121099957. The next prime is 210010121100061. The reversal of 210010121100020 is 20001121010012.

It is a super-2 number, since 2×210010121100020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210010121099974 and 210010121100010.

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, 40078264766 + ... + 40078270005.

It is an arithmetic number, because the mean of its divisors is an integer number (18516159532332).

Almost surely, 2^{210010121100020} is an apocalyptic number.

210010121100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210010121100020 is an abundant number, since it is smaller than the sum of its proper divisors (234377707675948).

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

210010121100020 is a wasteful number, since it uses less digits than its factorization.

210010121100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80156534911 (or 80156534909 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210010121100020 its reverse (20001121010012), we get a palindrome (230011242110032).

The spelling of 210010121100020 in words is "two hundred ten trillion, ten billion, one hundred twenty-one million, one hundred thousand, twenty".