402201121213 has 2 divisors, whose sum is σ = 402201121214. Its totient is φ = 402201121212.

The previous prime is 402201121199. The next prime is 402201121321. The reversal of 402201121213 is 312121102204.

Together with next prime (402201121321) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292320804889 + 109880316324 = 540667^2 + 331482^2 .

It is a cyclic number.

It is not a de Polignac number, because 402201121213 - 2²¹ = 402199024061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402201101213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201100560606 + 201100560607.

It is an arithmetic number, because the mean of its divisors is an integer number (201100560607).

Almost surely, 2^402201121213 is an apocalyptic number.

It is an amenable number.

402201121213 is a deficient number, since it is larger than the sum of its proper divisors (1).

402201121213 is an equidigital number, since it uses as much as digits as its factorization.

402201121213 is an evil number, because the sum of its binary digits is even.

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

Adding to 402201121213 its reverse (312121102204), we get a palindrome (714322223417).

The spelling of 402201121213 in words is "four hundred two billion, two hundred one million, one hundred twenty-one thousand, two hundred thirteen".