2211012123321 has 4 divisors (see below), whose sum is σ = 2948016164432. Its totient is φ = 1474008082212.

The previous prime is 2211012123317. The next prime is 2211012123329. The reversal of 2211012123321 is 1233212101122.

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 not a de Polignac number, because 2211012123321 - 2² = 2211012123317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211012123329) 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, 368502020551 + ... + 368502020556.

It is an arithmetic number, because the mean of its divisors is an integer number (737004041108).

Almost surely, 2^{2211012123321} is an apocalyptic number.

It is an amenable number.

2211012123321 is a deficient number, since it is larger than the sum of its proper divisors (737004041111).

2211012123321 is an equidigital number, since it uses as much as digits as its factorization.

2211012123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737004041110.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2211012123321 its reverse (1233212101122), we get a palindrome (3444224224443).

The spelling of 2211012123321 in words is "two trillion, two hundred eleven billion, twelve million, one hundred twenty-three thousand, three hundred twenty-one".