124112121202020 has 96 divisors (see below), whose sum is σ = 400802446598400. Its totient is φ = 28108223506944.

The previous prime is 124112121201953. The next prime is 124112121202037. The reversal of 124112121202020 is 20202121211421.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1355481975 + ... + 1355573534.

It is an arithmetic number, because the mean of its divisors is an integer number (4175025485400).

Almost surely, 2^{124112121202020} is an apocalyptic number.

124112121202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124112121202020 is an abundant number, since it is smaller than the sum of its proper divisors (276690325396380).

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

124112121202020 is a wasteful number, since it uses less digits than its factorization.

124112121202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711055637 (or 2711055635 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 124112121202020 its reverse (20202121211421), we get a palindrome (144314242413441).

The spelling of 124112121202020 in words is "one hundred twenty-four trillion, one hundred twelve billion, one hundred twenty-one million, two hundred two thousand, twenty".