122240155403 has 4 divisors (see below), whose sum is σ = 123049693008. Its totient is φ = 121430617800.

The previous prime is 122240155393. The next prime is 122240155423. The reversal of 122240155403 is 304551042221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304551042221 = 487 ⋅625361483.

It is a cyclic number.

It is not a de Polignac number, because 122240155403 - 2³⁰ = 121166413579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122240155423) 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, 404768576 + ... + 404768877.

It is an arithmetic number, because the mean of its divisors is an integer number (30762423252).

Almost surely, 2^122240155403 is an apocalyptic number.

122240155403 is a deficient number, since it is larger than the sum of its proper divisors (809537605).

122240155403 is an equidigital number, since it uses as much as digits as its factorization.

122240155403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809537604.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 122240155403 its reverse (304551042221), we get a palindrome (426791197624).

The spelling of 122240155403 in words is "one hundred twenty-two billion, two hundred forty million, one hundred fifty-five thousand, four hundred three".