2000021012220 has 96 divisors (see below), whose sum is σ = 6981891549696. Its totient is φ = 415588780800.

The previous prime is 2000021012203. The next prime is 2000021012221. The reversal of 2000021012220 is 222101200002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2000021012196 and 2000021012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000021012221) 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, 216447871 + ... + 216457110.

It is an arithmetic number, because the mean of its divisors is an integer number (72728036976).

Almost surely, 2^{2000021012220} is an apocalyptic number.

2000021012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000021012220 is an abundant number, since it is smaller than the sum of its proper divisors (4981870537476).

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

2000021012220 is a wasteful number, since it uses less digits than its factorization.

2000021012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432905011 (or 432905009 counting only the distinct ones).

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

Adding to 2000021012220 its reverse (222101200002), we get a palindrome (2222122212222).

The spelling of 2000021012220 in words is "two trillion, twenty-one million, twelve thousand, two hundred twenty".