222212121011 has 8 divisors (see below), whose sum is σ = 224283454080. Its totient is φ = 220142627712.

The previous prime is 222212120987. The next prime is 222212121049. The reversal of 222212121011 is 110121212222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222212121011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222212121091) 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, 216656 + ... + 700973.

It is an arithmetic number, because the mean of its divisors is an integer number (28035431760).

Almost surely, 2^222212121011 is an apocalyptic number.

222212121011 is a deficient number, since it is larger than the sum of its proper divisors (2071333069).

222212121011 is a wasteful number, since it uses less digits than its factorization.

222212121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919885.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222212121011 its reverse (110121212222), we get a palindrome (332333333233).

The spelling of 222212121011 in words is "two hundred twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, eleven".