10212201220020 has 48 divisors (see below), whose sum is σ = 28617659235648. Its totient is φ = 2721015961600.

The previous prime is 10212201220007. The next prime is 10212201220021. The reversal of 10212201220020 is 2002210221201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212201220021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69854406 + ... + 70000445.

It is an arithmetic number, because the mean of its divisors is an integer number (596201234076).

Almost surely, 2^{10212201220020} is an apocalyptic number.

10212201220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212201220020 is an abundant number, since it is smaller than the sum of its proper divisors (18405458015628).

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

10212201220020 is a wasteful number, since it uses less digits than its factorization.

10212201220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139856080 (or 139856078 counting only the distinct ones).

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

Adding to 10212201220020 its reverse (2002210221201), we get a palindrome (12214411441221).

The spelling of 10212201220020 in words is "ten trillion, two hundred twelve billion, two hundred one million, two hundred twenty thousand, twenty".