2111100222021 has 32 divisors (see below), whose sum is σ = 3269813956608. Its totient is φ = 1186507707840.

The previous prime is 2111100222001. The next prime is 2111100222029. The reversal of 2111100222021 is 1202220011112.

It is not a de Polignac number, because 2111100222021 - 2⁹ = 2111100221509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111100222029) 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, 44507700 + ... + 44555106.

It is an arithmetic number, because the mean of its divisors is an integer number (102181686144).

Almost surely, 2^{2111100222021} is an apocalyptic number.

2111100222021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2111100222021 is a deficient number, since it is larger than the sum of its proper divisors (1158713734587).

2111100222021 is a wasteful number, since it uses less digits than its factorization.

2111100222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82241.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2111100222021 its reverse (1202220011112), we get a palindrome (3313320233133).

The spelling of 2111100222021 in words is "two trillion, one hundred eleven billion, one hundred million, two hundred twenty-two thousand, twenty-one".