1111121102222 has 4 divisors (see below), whose sum is σ = 1666681653336. Its totient is φ = 555560551110.

The previous prime is 1111121102213. The next prime is 1111121102309. The reversal of 1111121102222 is 2222011211111.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1111121102222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277780275554 + ... + 277780275557.

It is an arithmetic number, because the mean of its divisors is an integer number (416670413334).

Almost surely, 2^{1111121102222} is an apocalyptic number.

1111121102222 is a deficient number, since it is larger than the sum of its proper divisors (555560551114).

1111121102222 is an equidigital number, since it uses as much as digits as its factorization.

1111121102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555560551113.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1111121102222 its reverse (2222011211111), we get a palindrome (3333132313333).

The spelling of 1111121102222 in words is "one trillion, one hundred eleven billion, one hundred twenty-one million, one hundred two thousand, two hundred twenty-two".