1121212210222 has 32 divisors (see below), whose sum is σ = 1823055192000. Its totient is φ = 514093402368.

The previous prime is 1121212210189. The next prime is 1121212210309. The reversal of 1121212210222 is 2220122121211.

It is a self number, because there is not a number n which added to its sum of digits gives 1121212210222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25813279 + ... + 25856677.

It is an arithmetic number, because the mean of its divisors is an integer number (56970474750).

Almost surely, 2^{1121212210222} is an apocalyptic number.

1121212210222 is a deficient number, since it is larger than the sum of its proper divisors (701842981778).

1121212210222 is a wasteful number, since it uses less digits than its factorization.

1121212210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49900.

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

Adding to 1121212210222 its reverse (2220122121211), we get a palindrome (3341334331433).

The spelling of 1121212210222 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred ten thousand, two hundred twenty-two".