2011022401220 has 48 divisors (see below), whose sum is σ = 4826708035968. Its totient is φ = 689457070080.

The previous prime is 2011022401163. The next prime is 2011022401237. The reversal of 2011022401220 is 221042201102.

It is a super-2 number, since 2×2011022401220² (a number of 25 digits) contains 22 as substring.

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, 2358980 + ... + 3096260.

It is an arithmetic number, because the mean of its divisors is an integer number (100556417416).

Almost surely, 2^{2011022401220} is an apocalyptic number.

2011022401220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011022401220 is an abundant number, since it is smaller than the sum of its proper divisors (2815685634748).

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

2011022401220 is a wasteful number, since it uses less digits than its factorization.

2011022401220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756780 (or 756778 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2011022401220 its reverse (221042201102), we get a palindrome (2232064602322).

The spelling of 2011022401220 in words is "two trillion, eleven billion, twenty-two million, four hundred one thousand, two hundred twenty".