10101211210220 has 96 divisors (see below), whose sum is σ = 22946281344000. Its totient is φ = 3713059194624.

The previous prime is 10101211210213. The next prime is 10101211210243. The reversal of 10101211210220 is 2201211210101.

It is a super-3 number, since 3×10101211210220³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10101211210195 and 10101211210204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55820327 + ... + 56000993.

It is an arithmetic number, because the mean of its divisors is an integer number (239023764000).

Almost surely, 2^{10101211210220} is an apocalyptic number.

10101211210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10101211210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11473140672000).

10101211210220 is an abundant number, since it is smaller than the sum of its proper divisors (12845070133780).

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

10101211210220 is a wasteful number, since it uses less digits than its factorization.

10101211210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181647 (or 181645 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10101211210220 its reverse (2201211210101), we get a palindrome (12302422420321).

The spelling of 10101211210220 in words is "ten trillion, one hundred one billion, two hundred eleven million, two hundred ten thousand, two hundred twenty".