122155370641 has 8 divisors (see below), whose sum is σ = 122871180744. Its totient is φ = 121441198080.

The previous prime is 122155370581. The next prime is 122155370677. The reversal of 122155370641 is 146073551221.

It can be written as a sum of positive squares in 4 ways, for example, as 12977994241 + 109177376400 = 113921^2 + 330420^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122155370641 - 2¹⁹ = 122154846353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122155370641.

It is not an unprimeable number, because it can be changed into a prime (122155370681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259596 + ... + 558301.

It is an arithmetic number, because the mean of its divisors is an integer number (15358897593).

Almost surely, 2^122155370641 is an apocalyptic number.

It is an amenable number.

122155370641 is a deficient number, since it is larger than the sum of its proper divisors (715810103).

122155370641 is an equidigital number, since it uses as much as digits as its factorization.

122155370641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818771.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 122155370641 in words is "one hundred twenty-two billion, one hundred fifty-five million, three hundred seventy thousand, six hundred forty-one".