10101220212020 has 48 divisors (see below), whose sum is σ = 24248210585088. Its totient is φ = 3462520919040.

The previous prime is 10101220212019. The next prime is 10101220212067. The reversal of 10101220212020 is 2021202210101.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 10101220211986 and 10101220212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7215197 + ... + 8500676.

It is an arithmetic number, because the mean of its divisors is an integer number (505171053856).

Almost surely, 2^{10101220212020} is an apocalyptic number.

10101220212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101220212020 is an abundant number, since it is smaller than the sum of its proper divisors (14146990373068).

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

10101220212020 is a wasteful number, since it uses less digits than its factorization.

10101220212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15720480 (or 15720478 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10101220212020 its reverse (2021202210101), we get a palindrome (12122422422121).

The spelling of 10101220212020 in words is "ten trillion, one hundred one billion, two hundred twenty million, two hundred twelve thousand, twenty".