2211011112222 has 48 divisors (see below), whose sum is σ = 5239058937840. Its totient is φ = 668332512000.

The previous prime is 2211011112203. The next prime is 2211011112263. The reversal of 2211011112222 is 2222111101122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2211011112195 and 2211011112204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13844197 + ... + 14002992.

It is an arithmetic number, because the mean of its divisors is an integer number (109147061205).

Almost surely, 2^{2211011112222} is an apocalyptic number.

2211011112222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2211011112222 is an abundant number, since it is smaller than the sum of its proper divisors (3028047825618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211011112222 is a wasteful number, since it uses less digits than its factorization.

2211011112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27847609 (or 27847606 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2211011112222 its reverse (2222111101122), we get a palindrome (4433122213344).

The spelling of 2211011112222 in words is "two trillion, two hundred eleven billion, eleven million, one hundred twelve thousand, two hundred twenty-two".