1101111221002 has 32 divisors (see below), whose sum is σ = 1874225041920. Its totient is φ = 480971494080.

The previous prime is 1101111220969. The next prime is 1101111221051. The reversal of 1101111221002 is 2001221111011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 635053 + ... + 1614160.

It is an arithmetic number, because the mean of its divisors is an integer number (58569532560).

Almost surely, 2^{1101111221002} is an apocalyptic number.

1101111221002 is a deficient number, since it is larger than the sum of its proper divisors (773113820918).

1101111221002 is a wasteful number, since it uses less digits than its factorization.

1101111221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250238.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1101111221002 its reverse (2001221111011), we get a palindrome (3102332332013).

The spelling of 1101111221002 in words is "one trillion, one hundred one billion, one hundred eleven million, two hundred twenty-one thousand, two".