122541041551 has 4 divisors (see below), whose sum is σ = 123665271400. Its totient is φ = 121416811704.

The previous prime is 122541041543. The next prime is 122541041603. The reversal of 122541041551 is 155140145221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155140145221 = 41 ⋅3783905981.

It is a cyclic number.

It is not a de Polignac number, because 122541041551 - 2³ = 122541041543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122541041951) 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, 562114761 + ... + 562114978.

It is an arithmetic number, because the mean of its divisors is an integer number (30916317850).

Almost surely, 2^122541041551 is an apocalyptic number.

122541041551 is a deficient number, since it is larger than the sum of its proper divisors (1124229849).

122541041551 is a wasteful number, since it uses less digits than its factorization.

122541041551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124229848.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 122541041551 its reverse (155140145221), we get a palindrome (277681186772).

The spelling of 122541041551 in words is "one hundred twenty-two billion, five hundred forty-one million, forty-one thousand, five hundred fifty-one".