122123122021 has 8 divisors (see below), whose sum is σ = 122445993600. Its totient is φ = 121800569232.

The previous prime is 122123122013. The next prime is 122123122067. The reversal of 122123122021 is 120221321221.

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

It is a cyclic number.

It is not a de Polignac number, because 122123122021 - 2³ = 122123122013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122123122021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122123122621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697455 + ... + 854803.

It is an arithmetic number, because the mean of its divisors is an integer number (15305749200).

Almost surely, 2^122123122021 is an apocalyptic number.

It is an amenable number.

122123122021 is a deficient number, since it is larger than the sum of its proper divisors (322871579).

122123122021 is a wasteful number, since it uses less digits than its factorization.

122123122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159395.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122123122021 its reverse (120221321221), we get a palindrome (242344443242).

The spelling of 122123122021 in words is "one hundred twenty-two billion, one hundred twenty-three million, one hundred twenty-two thousand, twenty-one".