222220121212011 has 16 divisors (see below), whose sum is σ = 323579461443840. Its totient is φ = 134824775598240.

The previous prime is 222220121211989. The next prime is 222220121212049. The reversal of 222220121212011 is 110212121022222.

It is not a de Polignac number, because 222220121212011 - 2⁹ = 222220121211499 is a prime.

It is a super-2 number, since 2×222220121212011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222220121612011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40126418541 + ... + 40126424078.

It is an arithmetic number, because the mean of its divisors is an integer number (20223716340240).

Almost surely, 2^{222220121212011} is an apocalyptic number.

222220121212011 is a deficient number, since it is larger than the sum of its proper divisors (101359340231829).

222220121212011 is a wasteful number, since it uses less digits than its factorization.

222220121212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80252842706.

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

Adding to 222220121212011 its reverse (110212121022222), we get a palindrome (332432242234233).

The spelling of 222220121212011 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twelve thousand, eleven".