122740450267 has 4 divisors (see below), whose sum is σ = 122915544336. Its totient is φ = 122565356200.

The previous prime is 122740450247. The next prime is 122740450307. The reversal of 122740450267 is 762054047221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 762054047221 = 394363 ⋅1932367.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122740450267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122740450247) 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, 87545983 + ... + 87547384.

It is an arithmetic number, because the mean of its divisors is an integer number (30728886084).

Almost surely, 2^122740450267 is an apocalyptic number.

122740450267 is a deficient number, since it is larger than the sum of its proper divisors (175094069).

122740450267 is an equidigital number, since it uses as much as digits as its factorization.

122740450267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175094068.

The product of its (nonzero) digits is 188160, while the sum is 40.

Adding to 122740450267 its reverse (762054047221), we get a palindrome (884794497488).

The spelling of 122740450267 in words is "one hundred twenty-two billion, seven hundred forty million, four hundred fifty thousand, two hundred sixty-seven".