1101221011000 has 64 divisors (see below), whose sum is σ = 2811116936160. Its totient is φ = 400444000000.

The previous prime is 1101221010983. The next prime is 1101221011013. The reversal of 1101221011000 is 1101221011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50044501 + ... + 50066500.

Almost surely, 2^{1101221011000} is an apocalyptic number.

1101221011000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101221011000 is an abundant number, since it is smaller than the sum of its proper divisors (1709895925160).

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

1101221011000 is a wasteful number, since it uses less digits than its factorization.

1101221011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100111033 (or 100111019 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1101221011000 its reverse (1101221011), we get a palindrome (1102322232011).

1101221011000 divided by its reverse (1101221011) gives a cube (1000 = 10³).

It can be divided in two parts, 11012 and 21011000, that added together give a palindrome (21022012).

The spelling of 1101221011000 in words is "one trillion, one hundred one billion, two hundred twenty-one million, eleven thousand".