10101212200020 has 48 divisors (see below), whose sum is σ = 28283546934720. Its totient is φ = 2693642036736.

The previous prime is 10101212199989. The next prime is 10101212200039. The reversal of 10101212200020 is 2000221210101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10101212199969 and 10101212200005.

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, 15200476 + ... + 15851084.

It is an arithmetic number, because the mean of its divisors is an integer number (589240561140).

Almost surely, 2^{10101212200020} is an apocalyptic number.

10101212200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101212200020 is an abundant number, since it is smaller than the sum of its proper divisors (18182334734700).

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

10101212200020 is a wasteful number, since it uses less digits than its factorization.

10101212200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909384 (or 909382 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10101212200020 its reverse (2000221210101), we get a palindrome (12101433410121).

The spelling of 10101212200020 in words is "ten trillion, one hundred one billion, two hundred twelve million, two hundred thousand, twenty".