1211110002222 has 16 divisors (see below), whose sum is σ = 2447191345872. Its totient is φ = 399541443840.

The previous prime is 1211110002199. The next prime is 1211110002233. The reversal of 1211110002222 is 2222000111121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040471929 + ... + 1040473092.

It is an arithmetic number, because the mean of its divisors is an integer number (152949459117).

Almost surely, 2^{1211110002222} is an apocalyptic number.

1211110002222 is an abundant number, since it is smaller than the sum of its proper divisors (1236081343650).

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

1211110002222 is a wasteful number, since it uses less digits than its factorization.

1211110002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080945123.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1211110002222 its reverse (2222000111121), we get a palindrome (3433110113343).

The spelling of 1211110002222 in words is "one trillion, two hundred eleven billion, one hundred ten million, two thousand, two hundred twenty-two".