223121020213 has 32 divisors (see below), whose sum is σ = 279382521600. Its totient is φ = 173470104576.

The previous prime is 223121020211. The next prime is 223121020237. The reversal of 223121020213 is 312020121322.

It is not a de Polignac number, because 223121020213 - 2¹ = 223121020211 is a prime.

It is a super-3 number, since 3×223121020213³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223121020211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15203043 + ... + 15217711.

It is an arithmetic number, because the mean of its divisors is an integer number (8730703800).

Almost surely, 2^223121020213 is an apocalyptic number.

It is an amenable number.

223121020213 is a deficient number, since it is larger than the sum of its proper divisors (56261501387).

223121020213 is a wasteful number, since it uses less digits than its factorization.

223121020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17581.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 223121020213 its reverse (312020121322), we get a palindrome (535141141535).

The spelling of 223121020213 in words is "two hundred twenty-three billion, one hundred twenty-one million, twenty thousand, two hundred thirteen".