1102111221100 has 36 divisors (see below), whose sum is σ = 2391677936704. Its totient is φ = 440826684480.

The previous prime is 1102111221091. The next prime is 1102111221121. The reversal of 1102111221100 is 11221112011.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2422309 + ... + 2841091.

Almost surely, 2^{1102111221100} is an apocalyptic number.

1102111221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102111221100 is an abundant number, since it is smaller than the sum of its proper divisors (1289566715604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1102111221100 is a wasteful number, since it uses less digits than its factorization.

1102111221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445114 (or 445107 counting only the distinct ones).

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

Adding to 1102111221100 its reverse (11221112011), we get a palindrome (1113332333111).

The spelling of 1102111221100 in words is "one trillion, one hundred two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred".