2211112200021 has 4 divisors (see below), whose sum is σ = 2948149600032. Its totient is φ = 1474074800012.

The previous prime is 2211112200019. The next prime is 2211112200049. The reversal of 2211112200021 is 1200022111122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2211112200021 - 2¹ = 2211112200019 is a prime.

It is a super-2 number, since 2×2211112200021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211112200721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368518700001 + ... + 368518700006.

It is an arithmetic number, because the mean of its divisors is an integer number (737037400008).

Almost surely, 2^{2211112200021} is an apocalyptic number.

It is an amenable number.

2211112200021 is a deficient number, since it is larger than the sum of its proper divisors (737037400011).

2211112200021 is an equidigital number, since it uses as much as digits as its factorization.

2211112200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737037400010.

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

Adding to 2211112200021 its reverse (1200022111122), we get a palindrome (3411134311143).

The spelling of 2211112200021 in words is "two trillion, two hundred eleven billion, one hundred twelve million, two hundred thousand, twenty-one".