1100921098 has 4 divisors (see below), whose sum is σ = 1651381650. Its totient is φ = 550460548.

The previous prime is 1100921093. The next prime is 1100921137. The reversal of 1100921098 is 8901290011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8901290011 = 3083 ⋅2887217.

It can be written as a sum of positive squares in only one way, i.e., 1017801409 + 83119689 = 31903^2 + 9117^2 .

It is not an unprimeable number, because it can be changed into a prime (1100921093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275230273 + ... + 275230276.

Almost surely, 2^1100921098 is an apocalyptic number.

1100921098 is a deficient number, since it is larger than the sum of its proper divisors (550460552).

1100921098 is an equidigital number, since it uses as much as digits as its factorization.

1100921098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550460551.

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 1100921098 is about 33180.1310726766. The cubic root of 1100921098 is about 1032.5681657220.

The spelling of 1100921098 in words is "one billion, one hundred million, nine hundred twenty-one thousand, ninety-eight".