20212001132220 has 36 divisors (see below), whose sum is σ = 61309736768280. Its totient is φ = 5389866968544.

The previous prime is 20212001132117. The next prime is 20212001132261. The reversal of 20212001132220 is 2223110021202.

20212001132220 is a `hidden beast` number, since 202 + 1 + 200 + 11 + 32 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 20212001132193 and 20212001132202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56144447410 + ... + 56144447769.

Almost surely, 2^{20212001132220} is an apocalyptic number.

20212001132220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212001132220 is an abundant number, since it is smaller than the sum of its proper divisors (41097735636060).

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

20212001132220 is a wasteful number, since it uses less digits than its factorization.

20212001132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112288895194 (or 112288895189 counting only the distinct ones).

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

Adding to 20212001132220 its reverse (2223110021202), we get a palindrome (22435111153422).

The spelling of 20212001132220 in words is "twenty trillion, two hundred twelve billion, one million, one hundred thirty-two thousand, two hundred twenty".