122212220202211 has 4 divisors (see below), whose sum is σ = 122438120794624. Its totient is φ = 121986319609800.

The previous prime is 122212220202041. The next prime is 122212220202227. The reversal of 122212220202211 is 112202022212221.

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

It is a cyclic number.

It is not a de Polignac number, because 122212220202211 - 2²¹ = 122212218105059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122212220202511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112950295395 + ... + 112950296476.

It is an arithmetic number, because the mean of its divisors is an integer number (30609530198656).

Almost surely, 2^{122212220202211} is an apocalyptic number.

122212220202211 is a deficient number, since it is larger than the sum of its proper divisors (225900592413).

122212220202211 is an equidigital number, since it uses as much as digits as its factorization.

122212220202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225900592412.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 122212220202211 its reverse (112202022212221), we get a palindrome (234414242414432).

The spelling of 122212220202211 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred twenty million, two hundred two thousand, two hundred eleven".