212021202132 has 96 divisors (see below), whose sum is σ = 558898672640. Its totient is φ = 69489912960.

The previous prime is 212021202101. The next prime is 212021202137. The reversal of 212021202132 is 231202120212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021202137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29293218 + ... + 29300454.

Almost surely, 2^212021202132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021202132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279449336320).

212021202132 is an abundant number, since it is smaller than the sum of its proper divisors (346877470508).

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

212021202132 is a wasteful number, since it uses less digits than its factorization.

212021202132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11758 (or 11750 counting only the distinct ones).

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

Adding to 212021202132 its reverse (231202120212), we get a palindrome (443223322344).

The spelling of 212021202132 in words is "two hundred twelve billion, twenty-one million, two hundred two thousand, one hundred thirty-two".