2111220011000 has 96 divisors (see below), whose sum is σ = 5063691756240. Its totient is φ = 823890080000.

The previous prime is 2111220010943. The next prime is 2111220011051. The reversal of 2111220011000 is 1100221112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1053035 + ... + 2308965.

Almost surely, 2^{2111220011000} is an apocalyptic number.

2111220011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111220011000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2531845878120).

2111220011000 is an abundant number, since it is smaller than the sum of its proper divisors (2952471745240).

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

2111220011000 is a wasteful number, since it uses less digits than its factorization.

2111220011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256034 (or 1255979 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2111220011000 its reverse (1100221112), we get a palindrome (2112320232112).

The spelling of 2111220011000 in words is "two trillion, one hundred eleven billion, two hundred twenty million, eleven thousand".