122002102021201 has 4 divisors (see below), whose sum is σ = 122002143092404. Its totient is φ = 122002060950000.

The previous prime is 122002102021181. The next prime is 122002102021279. The reversal of 122002102021201 is 102120201200221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42847183442176 + 79154918579025 = 6545776^2 + 8896905^2 .

It is a cyclic number.

It is not a de Polignac number, because 122002102021201 - 2¹¹ = 122002102019153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122002102021601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15700350 + ... + 22147351.

It is an arithmetic number, because the mean of its divisors is an integer number (30500535773101).

Almost surely, 2^{122002102021201} is an apocalyptic number.

It is an amenable number.

122002102021201 is a deficient number, since it is larger than the sum of its proper divisors (41071203).

122002102021201 is an equidigital number, since it uses as much as digits as its factorization.

122002102021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41071202.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122002102021201 its reverse (102120201200221), we get a palindrome (224122303221422).

The spelling of 122002102021201 in words is "one hundred twenty-two trillion, two billion, one hundred two million, twenty-one thousand, two hundred one".