103012120233221 has 4 divisors (see below), whose sum is σ = 107490908069472. Its totient is φ = 98533332396972.

The previous prime is 103012120233163. The next prime is 103012120233227. The reversal of 103012120233221 is 122332021210301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103012120233221 - 2⁶ = 103012120233157 is a prime.

It is a super-2 number, since 2×103012120233221² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 4478787836227 = 103012120233221 / (1 + 0 + 3 + 0 + 1 + 2 + 1 + 2 + 0 + 2 + 3 + 3 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103012120233227) 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, 2239393918091 + ... + 2239393918136.

It is an arithmetic number, because the mean of its divisors is an integer number (26872727017368).

Almost surely, 2^{103012120233221} is an apocalyptic number.

It is an amenable number.

103012120233221 is a deficient number, since it is larger than the sum of its proper divisors (4478787836251).

103012120233221 is an equidigital number, since it uses as much as digits as its factorization.

103012120233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478787836250.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 103012120233221 its reverse (122332021210301), we get a palindrome (225344141443522).

The spelling of 103012120233221 in words is "one hundred three trillion, twelve billion, one hundred twenty million, two hundred thirty-three thousand, two hundred twenty-one".