10101211202220 has 48 divisors (see below), whose sum is σ = 28304802179808. Its totient is φ = 2691617195520.

The previous prime is 10101211202219. The next prime is 10101211202237. The reversal of 10101211202220 is 2220211210101.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10101211202220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63642739 + ... + 63801258.

It is an arithmetic number, because the mean of its divisors is an integer number (589683378746).

Almost surely, 2^{10101211202220} is an apocalyptic number.

10101211202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101211202220 is an abundant number, since it is smaller than the sum of its proper divisors (18203590977588).

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

10101211202220 is a wasteful number, since it uses less digits than its factorization.

10101211202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127445330 (or 127445328 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10101211202220 its reverse (2220211210101), we get a palindrome (12321422412321).

The spelling of 10101211202220 in words is "ten trillion, one hundred one billion, two hundred eleven million, two hundred two thousand, two hundred twenty".