1201121233223 has 16 divisors (see below), whose sum is σ = 1247928794112. Its totient is φ = 1154836872000.

The previous prime is 1201121233219. The next prime is 1201121233229. The reversal of 1201121233223 is 3223321211021.

It is a cyclic number.

It is not a de Polignac number, because 1201121233223 - 2² = 1201121233219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201121233229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3574115 + ... + 3895707.

It is an arithmetic number, because the mean of its divisors is an integer number (77995549632).

Almost surely, 2^{1201121233223} is an apocalyptic number.

1201121233223 is a deficient number, since it is larger than the sum of its proper divisors (46807560889).

1201121233223 is a wasteful number, since it uses less digits than its factorization.

1201121233223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322406.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1201121233223 its reverse (3223321211021), we get a palindrome (4424442444244).

The spelling of 1201121233223 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred thirty-three thousand, two hundred twenty-three".