20212133025 has 96 divisors (see below), whose sum is σ = 40687395840. Its totient is φ = 8647706880.

The previous prime is 20212132999. The next prime is 20212133027. The reversal of 20212133025 is 52033121202.

It is not a de Polignac number, because 20212133025 - 2⁶ = 20212132961 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 20212132992 and 20212133010.

It is not an unprimeable number, because it can be changed into a prime (20212133027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 815719 + ... + 840131.

It is an arithmetic number, because the mean of its divisors is an integer number (423827040).

Almost surely, 2^20212133025 is an apocalyptic number.

20212133025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20212133025 is an abundant number, since it is smaller than the sum of its proper divisors (20475262815).

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

20212133025 is a wasteful number, since it uses less digits than its factorization.

20212133025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24535 (or 24530 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20212133025 its reverse (52033121202), we get a palindrome (72245254227).

The spelling of 20212133025 in words is "twenty billion, two hundred twelve million, one hundred thirty-three thousand, twenty-five".