220019812002 has 64 divisors (see below), whose sum is σ = 500767787520. Its totient is φ = 71567874000.

The previous prime is 220019811983. The next prime is 220019812003. The reversal of 220019812002 is 200218910022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (220019812003) 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, 2489877 + ... + 2576727.

It is an arithmetic number, because the mean of its divisors is an integer number (7824496680).

Almost surely, 2^220019812002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220019812002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250383893760).

220019812002 is an abundant number, since it is smaller than the sum of its proper divisors (280747975518).

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

220019812002 is a wasteful number, since it uses less digits than its factorization.

220019812002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87996 (or 87990 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 220019812002 in words is "two hundred twenty billion, nineteen million, eight hundred twelve thousand, two".