122002021000221 has 4 divisors (see below), whose sum is σ = 162669361333632. Its totient is φ = 81334680666812.

The previous prime is 122002021000177. The next prime is 122002021000243. The reversal of 122002021000221 is 122000120200221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122002021000221 - 2²⁹ = 122001484129309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122002021000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002021000291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20333670166701 + ... + 20333670166706.

It is an arithmetic number, because the mean of its divisors is an integer number (40667340333408).

Almost surely, 2^{122002021000221} is an apocalyptic number.

It is an amenable number.

122002021000221 is a deficient number, since it is larger than the sum of its proper divisors (40667340333411).

122002021000221 is an equidigital number, since it uses as much as digits as its factorization.

122002021000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40667340333410.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122002021000221 its reverse (122000120200221), we get a palindrome (244002141200442).

The spelling of 122002021000221 in words is "one hundred twenty-two trillion, two billion, twenty-one million, two hundred twenty-one", and thus it is an aban number.