212021120262 has 96 divisors (see below), whose sum is σ = 496301644800. Its totient is φ = 60206627712.

The previous prime is 212021120249. The next prime is 212021120263. The reversal of 212021120262 is 262021120212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021120263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39978703 + ... + 39984005.

It is an arithmetic number, because the mean of its divisors is an integer number (5169808800).

Almost surely, 2^212021120262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021120262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248150822400).

212021120262 is an abundant number, since it is smaller than the sum of its proper divisors (284280524538).

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

212021120262 is a wasteful number, since it uses less digits than its factorization.

212021120262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6130 (or 6123 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 212021120262 its reverse (262021120212), we get a palindrome (474042240474).

The spelling of 212021120262 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, two hundred sixty-two".