122002243645 has 8 divisors (see below), whose sum is σ = 147211548120. Its totient is φ = 97062557760.

The previous prime is 122002243621. The next prime is 122002243681. The reversal of 122002243645 is 546342200221.

It can be written as a sum of positive squares in 4 ways, for example, as 687960441 + 121314283204 = 26229^2 + 348302^2 .

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

It is not a de Polignac number, because 122002243645 - 2²⁹ = 121465372733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67403650 + ... + 67405459.

It is an arithmetic number, because the mean of its divisors is an integer number (18401443515).

Almost surely, 2^122002243645 is an apocalyptic number.

It is an amenable number.

122002243645 is a deficient number, since it is larger than the sum of its proper divisors (25209304475).

122002243645 is a wasteful number, since it uses less digits than its factorization.

122002243645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134809295.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 122002243645 its reverse (546342200221), we get a palindrome (668344443866).

The spelling of 122002243645 in words is "one hundred twenty-two billion, two million, two hundred forty-three thousand, six hundred forty-five".