122222111021011 has 8 divisors (see below), whose sum is σ = 122361874382880. Its totient is φ = 122082382076928.

The previous prime is 122222111021009. The next prime is 122222111021027. The reversal of 122222111021011 is 110120111222221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122222111021011 - 2¹ = 122222111021009 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 122222111021011.

It is not an unprimeable number, because it can be changed into a prime (122222111021041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494766 + ... + 15706003.

It is an arithmetic number, because the mean of its divisors is an integer number (15295234297860).

Almost surely, 2^{122222111021011} is an apocalyptic number.

122222111021011 is a deficient number, since it is larger than the sum of its proper divisors (139763361869).

122222111021011 is an equidigital number, since it uses as much as digits as its factorization.

122222111021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17208893.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122222111021011 its reverse (110120111222221), we get a palindrome (232342222243232).

The spelling of 122222111021011 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, one hundred eleven million, twenty-one thousand, eleven".