1111021121222 has 8 divisors (see below), whose sum is σ = 1689360883176. Its totient is φ = 547900826832.

The previous prime is 1111021121213. The next prime is 1111021121237. The reversal of 1111021121222 is 2221211201111.

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 1111021121222.

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, 3804866708 + ... + 3804866999.

It is an arithmetic number, because the mean of its divisors is an integer number (211170110397).

Almost surely, 2^{1111021121222} is an apocalyptic number.

1111021121222 is a deficient number, since it is larger than the sum of its proper divisors (578339761954).

1111021121222 is an equidigital number, since it uses as much as digits as its factorization.

1111021121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7609733782.

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

Adding to 1111021121222 its reverse (2221211201111), we get a palindrome (3332232322333).

The spelling of 1111021121222 in words is "one trillion, one hundred eleven billion, twenty-one million, one hundred twenty-one thousand, two hundred twenty-two".