201210100101020 has 12 divisors (see below), whose sum is σ = 422541210212184. Its totient is φ = 80484040040400.

The previous prime is 201210100101013. The next prime is 201210100101089. The reversal of 201210100101020 is 20101001012102.

It is a super-2 number, since 2×201210100101020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201210100100992 and 201210100101010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5030252502506 + ... + 5030252502545.

It is an arithmetic number, because the mean of its divisors is an integer number (35211767517682).

Almost surely, 2^{201210100101020} is an apocalyptic number.

201210100101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201210100101020 is an abundant number, since it is smaller than the sum of its proper divisors (221331110111164).

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

201210100101020 is a wasteful number, since it uses less digits than its factorization.

201210100101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060505005060 (or 10060505005058 counting only the distinct ones).

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

Adding to 201210100101020 its reverse (20101001012102), we get a palindrome (221311101113122).

The spelling of 201210100101020 in words is "two hundred one trillion, two hundred ten billion, one hundred million, one hundred one thousand, twenty".