2102213020 has 12 divisors (see below), whose sum is σ = 4414647384. Its totient is φ = 840885200.

The previous prime is 2102212997. The next prime is 2102213027. The reversal of 2102213020 is 203122012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102213027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52555306 + ... + 52555345.

It is an arithmetic number, because the mean of its divisors is an integer number (367887282).

Almost surely, 2^2102213020 is an apocalyptic number.

2102213020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102213020 is an abundant number, since it is smaller than the sum of its proper divisors (2312434364).

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

2102213020 is a wasteful number, since it uses less digits than its factorization.

2102213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105110660 (or 105110658 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2102213020 is about 45849.8966192946. The cubic root of 2102213020 is about 1281.0288399711.

Adding to 2102213020 its reverse (203122012), we get a palindrome (2305335032).

The spelling of 2102213020 in words is "two billion, one hundred two million, two hundred thirteen thousand, twenty".