1201121000223 has 4 divisors (see below), whose sum is σ = 1601494666968. Its totient is φ = 800747333480.

The previous prime is 1201121000221. The next prime is 1201121000237. The reversal of 1201121000223 is 3220001211021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201121000223 - 2¹ = 1201121000221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201121000221) 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, 200186833368 + ... + 200186833373.

It is an arithmetic number, because the mean of its divisors is an integer number (400373666742).

Almost surely, 2^{1201121000223} is an apocalyptic number.

1201121000223 is a deficient number, since it is larger than the sum of its proper divisors (400373666745).

1201121000223 is an equidigital number, since it uses as much as digits as its factorization.

1201121000223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400373666744.

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

Adding to 1201121000223 its reverse (3220001211021), we get a palindrome (4421122211244).

The spelling of 1201121000223 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred twenty-three", and thus it is an aban number.