122621072141 has 4 divisors (see below), whose sum is σ = 129074812800. Its totient is φ = 116167331484.

The previous prime is 122621072039. The next prime is 122621072153. The reversal of 122621072141 is 141270126221.

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 a de Polignac number, because none of the positive numbers 2^k-122621072141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122621075141) 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, 3226870301 + ... + 3226870338.

It is an arithmetic number, because the mean of its divisors is an integer number (32268703200).

Almost surely, 2^122621072141 is an apocalyptic number.

It is an amenable number.

122621072141 is a deficient number, since it is larger than the sum of its proper divisors (6453740659).

122621072141 is an equidigital number, since it uses as much as digits as its factorization.

122621072141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453740658.

The product of its (nonzero) digits is 2688, while the sum is 29.

Adding to 122621072141 its reverse (141270126221), we get a palindrome (263891198362).

The spelling of 122621072141 in words is "one hundred twenty-two billion, six hundred twenty-one million, seventy-two thousand, one hundred forty-one".