101020212100220 has 96 divisors (see below), whose sum is σ = 261553774785408. Its totient is φ = 31983059976192.

The previous prime is 101020212100219. The next prime is 101020212100259. The reversal of 101020212100220 is 22001212020101.

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 = 101020212100195 and 101020212100204.

It is a congruent number.

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, 400302797 + ... + 400555076.

It is an arithmetic number, because the mean of its divisors is an integer number (2724518487348).

Almost surely, 2^{101020212100220} is an apocalyptic number.

101020212100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101020212100220 is an abundant number, since it is smaller than the sum of its proper divisors (160533562685188).

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

101020212100220 is a wasteful number, since it uses less digits than its factorization.

101020212100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800857959 (or 800857957 counting only the distinct ones).

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

Adding to 101020212100220 its reverse (22001212020101), we get a palindrome (123021424120321).

The spelling of 101020212100220 in words is "one hundred one trillion, twenty billion, two hundred twelve million, one hundred thousand, two hundred twenty".