122151141445 has 4 divisors (see below), whose sum is σ = 146581369740. Its totient is φ = 97720913152.

The previous prime is 122151141433. The next prime is 122151141461. The reversal of 122151141445 is 544141151221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52801605796 + 69349535649 = 229786^2 + 263343^2 .

It is a cyclic number.

It is not a de Polignac number, because 122151141445 - 2⁷ = 122151141317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12215114140 + ... + 12215114149.

It is an arithmetic number, because the mean of its divisors is an integer number (36645342435).

Almost surely, 2^122151141445 is an apocalyptic number.

It is an amenable number.

122151141445 is a deficient number, since it is larger than the sum of its proper divisors (24430228295).

122151141445 is an equidigital number, since it uses as much as digits as its factorization.

122151141445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24430228294.

The product of its digits is 6400, while the sum is 31.

Adding to 122151141445 its reverse (544141151221), we get a palindrome (666292292666).

The spelling of 122151141445 in words is "one hundred twenty-two billion, one hundred fifty-one million, one hundred forty-one thousand, four hundred forty-five".