223010131101221 has 4 divisors (see below), whose sum is σ = 223013065482444. Its totient is φ = 223007196720000.

The previous prime is 223010131101209. The next prime is 223010131101227. The reversal of 223010131101221 is 122101131010322.

223010131101221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 148404778622500 + 74605352478721 = 12182150^2 + 8637439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223010131101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223010131101193 and 223010131101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223010131101227) 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, 1467076610 + ... + 1467228611.

It is an arithmetic number, because the mean of its divisors is an integer number (55753266370611).

Almost surely, 2^{223010131101221} is an apocalyptic number.

It is an amenable number.

223010131101221 is a deficient number, since it is larger than the sum of its proper divisors (2934381223).

223010131101221 is an equidigital number, since it uses as much as digits as its factorization.

223010131101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934381222.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 223010131101221 its reverse (122101131010322), we get a palindrome (345111262111543).

The spelling of 223010131101221 in words is "two hundred twenty-three trillion, ten billion, one hundred thirty-one million, one hundred one thousand, two hundred twenty-one".