2223121101 has 4 divisors (see below), whose sum is σ = 2964161472. Its totient is φ = 1482080732.

The previous prime is 2223121079. The next prime is 2223121139. The reversal of 2223121101 is 1011213222.

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 2223121101 - 2¹⁴ = 2223104717 is a prime.

It is a super-2 number, since 2×2223121101² = 9884534859422904402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223121001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370520181 + ... + 370520186.

It is an arithmetic number, because the mean of its divisors is an integer number (741040368).

Almost surely, 2^2223121101 is an apocalyptic number.

It is an amenable number.

2223121101 is a deficient number, since it is larger than the sum of its proper divisors (741040371).

2223121101 is an equidigital number, since it uses as much as digits as its factorization.

2223121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741040370.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2223121101 is about 47149.9851643667. The cubic root of 2223121101 is about 1305.1318062434.

Adding to 2223121101 its reverse (1011213222), we get a palindrome (3234334323).

It can be divided in two parts, 2223121 and 101, that added together give a palindrome (2223222).

The spelling of 2223121101 in words is "two billion, two hundred twenty-three million, one hundred twenty-one thousand, one hundred one".