2102211021020 has 24 divisors (see below), whose sum is σ = 4815974339568. Its totient is φ = 764440371200.

The previous prime is 2102211020929. The next prime is 2102211021037. The reversal of 2102211021020 is 201201122012.

It is a junction number, because it is equal to n+sod(n) for n = 2102211020986 and 2102211021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4777752101 + ... + 4777752540.

It is an arithmetic number, because the mean of its divisors is an integer number (200665597482).

Almost surely, 2^{2102211021020} is an apocalyptic number.

2102211021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102211021020 is an abundant number, since it is smaller than the sum of its proper divisors (2713763318548).

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

2102211021020 is a wasteful number, since it uses less digits than its factorization.

2102211021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9555504661 (or 9555504659 counting only the distinct ones).

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

Adding to 2102211021020 its reverse (201201122012), we get a palindrome (2303412143032).

The spelling of 2102211021020 in words is "two trillion, one hundred two billion, two hundred eleven million, twenty-one thousand, twenty".