102233013221 has 4 divisors (see below), whose sum is σ = 102234314700. Its totient is φ = 102231711744.

The previous prime is 102233013167. The next prime is 102233013241. The reversal of 102233013221 is 122310332201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122310332201 = 53 ⋅2307742117.

It can be written as a sum of positive squares in 2 ways, for example, as 99452560321 + 2780452900 = 315361^2 + 52730^2 .

It is a cyclic number.

It is not a de Polignac number, because 102233013221 - 2¹⁰ = 102233012197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102233013193 and 102233013202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102233013241) 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, 524786 + ... + 692723.

It is an arithmetic number, because the mean of its divisors is an integer number (25558578675).

Almost surely, 2^102233013221 is an apocalyptic number.

It is an amenable number.

102233013221 is a deficient number, since it is larger than the sum of its proper divisors (1301479).

102233013221 is an equidigital number, since it uses as much as digits as its factorization.

102233013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301478.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 102233013221 its reverse (122310332201), we get a palindrome (224543345422).

The spelling of 102233013221 in words is "one hundred two billion, two hundred thirty-three million, thirteen thousand, two hundred twenty-one".