122240340151 has 4 divisors (see below), whose sum is σ = 125221811904. Its totient is φ = 119258868400.

The previous prime is 122240340143. The next prime is 122240340169. The reversal of 122240340151 is 151043042221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151043042221 = 3989 ⋅37864889.

It is a cyclic number.

It is not a de Polignac number, because 122240340151 - 2³ = 122240340143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122240340191) 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, 1490735815 + ... + 1490735896.

It is an arithmetic number, because the mean of its divisors is an integer number (31305452976).

Almost surely, 2^122240340151 is an apocalyptic number.

122240340151 is a deficient number, since it is larger than the sum of its proper divisors (2981471753).

122240340151 is an equidigital number, since it uses as much as digits as its factorization.

122240340151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981471752.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 122240340151 its reverse (151043042221), we get a palindrome (273283382372).

The spelling of 122240340151 in words is "one hundred twenty-two billion, two hundred forty million, three hundred forty thousand, one hundred fifty-one".