2011212200220 has 24 divisors (see below), whose sum is σ = 5631394160784. Its totient is φ = 536323253376.

The previous prime is 2011212200201. The next prime is 2011212200237. The reversal of 2011212200220 is 220022121102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2011212200220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16760101609 + ... + 16760101728.

It is an arithmetic number, because the mean of its divisors is an integer number (234641423366).

Almost surely, 2^{2011212200220} is an apocalyptic number.

2011212200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011212200220 is an abundant number, since it is smaller than the sum of its proper divisors (3620181960564).

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

2011212200220 is a wasteful number, since it uses less digits than its factorization.

2011212200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33520203349 (or 33520203347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2011212200220 its reverse (220022121102), we get a palindrome (2231234321322).

The spelling of 2011212200220 in words is "two trillion, eleven billion, two hundred twelve million, two hundred thousand, two hundred twenty".