20121402332020 has 48 divisors (see below), whose sum is σ = 46104013662336. Its totient is φ = 7315649744000.

The previous prime is 20121402331991. The next prime is 20121402332023. The reversal of 20121402332020 is 2023320412102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20121402331982 and 20121402332000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121402332023) 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, 6330136 + ... + 8961775.

It is an arithmetic number, because the mean of its divisors is an integer number (960500284632).

Almost surely, 2^{20121402332020} is an apocalyptic number.

20121402332020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20121402332020 is an abundant number, since it is smaller than the sum of its proper divisors (25982611330316).

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

20121402332020 is a wasteful number, since it uses less digits than its factorization.

20121402332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15297912 (or 15297910 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20121402332020 its reverse (2023320412102), we get a palindrome (22144722744122).

The spelling of 20121402332020 in words is "twenty trillion, one hundred twenty-one billion, four hundred two million, three hundred thirty-two thousand, twenty".