122401761 has 4 divisors (see below), whose sum is σ = 163202352. Its totient is φ = 81601172.

The previous prime is 122401759. The next prime is 122401817. The reversal of 122401761 is 167104221.

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 122401761 - 2¹ = 122401759 is a prime.

It is a super-2 number, since 2×122401761² = 29964382191802242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122401061) 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, 20400291 + ... + 20400296.

It is an arithmetic number, because the mean of its divisors is an integer number (40800588).

Almost surely, 2^122401761 is an apocalyptic number.

It is an amenable number.

122401761 is a deficient number, since it is larger than the sum of its proper divisors (40800591).

122401761 is an equidigital number, since it uses as much as digits as its factorization.

122401761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40800590.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 122401761 is about 11063.5329348269. The cubic root of 122401761 is about 496.5113972450.

Adding to 122401761 its reverse (167104221), we get a palindrome (289505982).

The spelling of 122401761 in words is "one hundred twenty-two million, four hundred one thousand, seven hundred sixty-one".