2102231140020 has 72 divisors (see below), whose sum is σ = 6956473960800. Its totient is φ = 509631791040.

The previous prime is 2102231140007. The next prime is 2102231140027. The reversal of 2102231140020 is 200411322012.

It is a happy number.

2102231140020 is a `hidden beast` number, since 2 + 10 + 2 + 231 + 1 + 400 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2102231139975 and 2102231140002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102231140027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 530864470 + ... + 530868429.

It is an arithmetic number, because the mean of its divisors is an integer number (96617693900).

Almost surely, 2^{2102231140020} is an apocalyptic number.

2102231140020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102231140020 is an abundant number, since it is smaller than the sum of its proper divisors (4854242820780).

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

2102231140020 is a wasteful number, since it uses less digits than its factorization.

2102231140020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061732925 (or 1061732920 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2102231140020 its reverse (200411322012), we get a palindrome (2302642462032).

The spelling of 2102231140020 in words is "two trillion, one hundred two billion, two hundred thirty-one million, one hundred forty thousand, twenty".