122040344551 has 16 divisors (see below), whose sum is σ = 135663978240. Its totient is φ = 109257888960.

The previous prime is 122040344533. The next prime is 122040344561. The reversal of 122040344551 is 155443040221.

It is a cyclic number.

It is not a de Polignac number, because 122040344551 - 2⁵ = 122040344519 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 (122040344561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1646070 + ... + 1718611.

It is an arithmetic number, because the mean of its divisors is an integer number (8478998640).

Almost surely, 2^122040344551 is an apocalyptic number.

122040344551 is a deficient number, since it is larger than the sum of its proper divisors (13623633689).

122040344551 is a wasteful number, since it uses less digits than its factorization.

122040344551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364806.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 122040344551 its reverse (155443040221), we get a palindrome (277483384772).

The spelling of 122040344551 in words is "one hundred twenty-two billion, forty million, three hundred forty-four thousand, five hundred fifty-one".