122001211120121 has 4 divisors (see below), whose sum is σ = 122001293467812. Its totient is φ = 122001128772432.

The previous prime is 122001211119973. The next prime is 122001211120141. The reversal of 122001211120121 is 121021112100221.

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 36292961604496 + 85708249515625 = 6024364^2 + 9257875^2 .

It is a cyclic number.

It is not a de Polignac number, because 122001211120121 - 2⁴⁶ = 51632466942457 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 122001211120121.

It is not an unprimeable number, because it can be changed into a prime (122001211120141) 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, 38910050 + ... + 41928443.

It is an arithmetic number, because the mean of its divisors is an integer number (30500323366953).

Almost surely, 2^{122001211120121} is an apocalyptic number.

It is an amenable number.

122001211120121 is a deficient number, since it is larger than the sum of its proper divisors (82347691).

122001211120121 is an equidigital number, since it uses as much as digits as its factorization.

122001211120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82347690.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122001211120121 its reverse (121021112100221), we get a palindrome (243022323220342).

The spelling of 122001211120121 in words is "one hundred twenty-two trillion, one billion, two hundred eleven million, one hundred twenty thousand, one hundred twenty-one".