212222122222011 has 48 divisors (see below), whose sum is σ = 312365268214272. Its totient is φ = 127092329944000.

The previous prime is 212222122221913. The next prime is 212222122222027. The reversal of 212222122222011 is 110222221222212.

It is a happy number.

It is not a de Polignac number, because 212222122222011 - 2²³ = 212222113833403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212222122222051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 843153166 + ... + 843404828.

It is an arithmetic number, because the mean of its divisors is an integer number (6507609754464).

Almost surely, 2^{212222122222011} is an apocalyptic number.

212222122222011 is a deficient number, since it is larger than the sum of its proper divisors (100143145992261).

212222122222011 is a wasteful number, since it uses less digits than its factorization.

212222122222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252784 (or 252281 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 212222122222011 its reverse (110222221222212), we get a palindrome (322444343444223).

The spelling of 212222122222011 in words is "two hundred twelve trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, eleven".