2221023001121 has 4 divisors (see below), whose sum is σ = 2221150436544. Its totient is φ = 2220895565700.

The previous prime is 2221023001117. The next prime is 2221023001139. The reversal of 2221023001121 is 1211003201222.

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 2221023001121 - 2² = 2221023001117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221023001121.

It is not an unprimeable number, because it can be changed into a prime (2221023001111) 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, 63691565 + ... + 63726426.

It is an arithmetic number, because the mean of its divisors is an integer number (555287609136).

Almost surely, 2^{2221023001121} is an apocalyptic number.

It is an amenable number.

2221023001121 is a deficient number, since it is larger than the sum of its proper divisors (127435423).

2221023001121 is a wasteful number, since it uses less digits than its factorization.

2221023001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127435422.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2221023001121 its reverse (1211003201222), we get a palindrome (3432026202343).

It can be divided in two parts, 222102 and 3001121, that added together give a palindrome (3223223).

The spelling of 2221023001121 in words is "two trillion, two hundred twenty-one billion, twenty-three million, one thousand, one hundred twenty-one".