2124312551020 has 48 divisors (see below), whose sum is σ = 4870941078528. Its totient is φ = 771789332160.

The previous prime is 2124312550901. The next prime is 2124312551027. The reversal of 2124312551020 is 201552134212.

It is a happy number.

It is a super-2 number, since 2×2124312551020² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2124312551020.

It is not an unprimeable number, because it can be changed into a prime (2124312551027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4052124 + ... + 4546243.

It is an arithmetic number, because the mean of its divisors is an integer number (101477939136).

Almost surely, 2^{2124312551020} is an apocalyptic number.

2124312551020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124312551020 is an abundant number, since it is smaller than the sum of its proper divisors (2746628527508).

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

2124312551020 is a wasteful number, since it uses less digits than its factorization.

2124312551020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599510 (or 8599508 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 2124312551020 its reverse (201552134212), we get a palindrome (2325864685232).

The spelling of 2124312551020 in words is "two trillion, one hundred twenty-four billion, three hundred twelve million, five hundred fifty-one thousand, twenty".