212021020002 has 128 divisors (see below), whose sum is σ = 508718112768. Its totient is φ = 58158259200.

The previous prime is 212021019997. The next prime is 212021020061. The reversal of 212021020002 is 200020120212.

It is a self number, because there is not a number n which added to its sum of digits gives 212021020002.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5650768 + ... + 5688164.

It is an arithmetic number, because the mean of its divisors is an integer number (3974360256).

Almost surely, 2^212021020002 is an apocalyptic number.

212021020002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021020002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254359056384).

212021020002 is an abundant number, since it is smaller than the sum of its proper divisors (296697092766).

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

212021020002 is a wasteful number, since it uses less digits than its factorization.

212021020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37624.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 212021020002 its reverse (200020120212), we get a palindrome (412041140214).

The spelling of 212021020002 in words is "two hundred twelve billion, twenty-one million, twenty thousand, two".