211111002220222 has 8 divisors (see below), whose sum is σ = 341025465125016. Its totient is φ = 97435847178552.

The previous prime is 211111002220211. The next prime is 211111002220331. The reversal of 211111002220222 is 222022200111112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 211111002220222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4059826965748 + ... + 4059826965799.

It is an arithmetic number, because the mean of its divisors is an integer number (42628183140627).

Almost surely, 2^{211111002220222} is an apocalyptic number.

211111002220222 is a deficient number, since it is larger than the sum of its proper divisors (129914462904794).

211111002220222 is a wasteful number, since it uses less digits than its factorization.

211111002220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8119653931562.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211111002220222 its reverse (222022200111112), we get a palindrome (433133202331334).

The spelling of 211111002220222 in words is "two hundred eleven trillion, one hundred eleven billion, two million, two hundred twenty thousand, two hundred twenty-two".