122222200121211 has 16 divisors (see below), whose sum is σ = 163066740613920. Its totient is φ = 81429565213440.

The previous prime is 122222200121207. The next prime is 122222200121269. The reversal of 122222200121211 is 112121002222221.

It is not a de Polignac number, because 122222200121211 - 2² = 122222200121207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122222200121711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272147401 + ... + 272596133.

It is an arithmetic number, because the mean of its divisors is an integer number (10191671288370).

Almost surely, 2^{122222200121211} is an apocalyptic number.

122222200121211 is a deficient number, since it is larger than the sum of its proper divisors (40844540492709).

122222200121211 is a wasteful number, since it uses less digits than its factorization.

122222200121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506366.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122222200121211 its reverse (112121002222221), we get a palindrome (234343202343432).

The spelling of 122222200121211 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, two hundred eleven".