122021104145 has 16 divisors (see below), whose sum is σ = 147768779520. Its totient is φ = 96724714944.

The previous prime is 122021104141. The next prime is 122021104151. The reversal of 122021104145 is 541401120221.

It is a cyclic number.

It is not a de Polignac number, because 122021104145 - 2² = 122021104141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122021104145.

It is not an unprimeable number, because it can be changed into a prime (122021104141) 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, 65324 + ... + 498306.

It is an arithmetic number, because the mean of its divisors is an integer number (9235548720).

Almost surely, 2^122021104145 is an apocalyptic number.

It is an amenable number.

122021104145 is a deficient number, since it is larger than the sum of its proper divisors (25747675375).

122021104145 is a wasteful number, since it uses less digits than its factorization.

122021104145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433504.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 122021104145 its reverse (541401120221), we get a palindrome (663422224366).

The spelling of 122021104145 in words is "one hundred twenty-two billion, twenty-one million, one hundred four thousand, one hundred forty-five".