1101221002 has 96 divisors (see below), whose sum is σ = 2198430720. Its totient is φ = 409812480.

The previous prime is 1101220999. The next prime is 1101221003. The reversal of 1101221002 is 2001221011.

It is a self number, because there is not a number n which added to its sum of digits gives 1101221002.

It is not an unprimeable number, because it can be changed into a prime (1101221003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1110727 + ... + 1111717.

It is an arithmetic number, because the mean of its divisors is an integer number (22900320).

Almost surely, 2^1101221002 is an apocalyptic number.

1101221002 is a deficient number, since it is larger than the sum of its proper divisors (1097209718).

1101221002 is a wasteful number, since it uses less digits than its factorization.

1101221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1101221002 is about 33184.6500960911. The cubic root of 1101221002 is about 1032.6619184922.

Adding to 1101221002 its reverse (2001221011), we get a palindrome (3102442013).

Subtracting 1101221002 from its reverse (2001221011), we obtain a palindrome (900000009).

The spelling of 1101221002 in words is "one billion, one hundred one million, two hundred twenty-one thousand, two".