2000021122220 has 48 divisors (see below), whose sum is σ = 4598407745568. Its totient is φ = 724654824960.

The previous prime is 2000021122193. The next prime is 2000021122259. The reversal of 2000021122220 is 222211200002.

It is a super-2 number, since 2×2000021122220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2000021122195 and 2000021122204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16348817 + ... + 16470696.

It is an arithmetic number, because the mean of its divisors is an integer number (95800161366).

Almost surely, 2^{2000021122220} is an apocalyptic number.

2000021122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000021122220 is an abundant number, since it is smaller than the sum of its proper divisors (2598386623348).

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

2000021122220 is a wasteful number, since it uses less digits than its factorization.

2000021122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32819810 (or 32819808 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2000021122220 its reverse (222211200002), we get a palindrome (2222232322222).

The spelling of 2000021122220 in words is "two trillion, twenty-one million, one hundred twenty-two thousand, two hundred twenty".