223103101221 has 128 divisors (see below), whose sum is σ = 444167700480. Its totient is φ = 106888896000.

The previous prime is 223103101219. The next prime is 223103101241. The reversal of 223103101221 is 122101301322.

223103101221 is a `hidden beast` number, since 2 + 231 + 0 + 310 + 122 + 1 = 666.

It is not a de Polignac number, because 223103101221 - 2¹ = 223103101219 is a prime.

It is a super-3 number, since 3×223103101221³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223103101194 and 223103101203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223103101201) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 38456521 + ... + 38462321.

It is an arithmetic number, because the mean of its divisors is an integer number (3470060160).

Almost surely, 2^223103101221 is an apocalyptic number.

223103101221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

223103101221 is a deficient number, since it is larger than the sum of its proper divisors (221064599259).

223103101221 is a wasteful number, since it uses less digits than its factorization.

223103101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264 (or 7258 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 223103101221 its reverse (122101301322), we get a palindrome (345204402543).

The spelling of 223103101221 in words is "two hundred twenty-three billion, one hundred three million, one hundred one thousand, two hundred twenty-one".