122402141204221 has 4 divisors (see below), whose sum is σ = 122402170753852. Its totient is φ = 122402111654592.

The previous prime is 122402141204219. The next prime is 122402141204257.

122402141204221 is nontrivially palindromic in base 10.

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 48858841808100 + 73543299396121 = 6989910^2 + 8575739^2 .

It is a cyclic number.

It is not a de Polignac number, because 122402141204221 - 2¹ = 122402141204219 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 122402141204221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122402141204521) 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, 7301340 + ... + 17265973.

It is an arithmetic number, because the mean of its divisors is an integer number (30600542688463).

Almost surely, 2^{122402141204221} is an apocalyptic number.

It is an amenable number.

122402141204221 is a deficient number, since it is larger than the sum of its proper divisors (29549631).

122402141204221 is an equidigital number, since it uses as much as digits as its factorization.

122402141204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29549630.

The product of its (nonzero) digits is 4096, while the sum is 28.

The spelling of 122402141204221 in words is "one hundred twenty-two trillion, four hundred two billion, one hundred forty-one million, two hundred four thousand, two hundred twenty-one".