1101221111000 has 32 divisors (see below), whose sum is σ = 2576857402080. Its totient is φ = 440488444000.

The previous prime is 1101221110949. The next prime is 1101221111033. The reversal of 1101221111000 is 1111221011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550609556 + ... + 550611555.

It is an arithmetic number, because the mean of its divisors is an integer number (80526793815).

Almost surely, 2^{1101221111000} is an apocalyptic number.

1101221111000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101221111000 is an abundant number, since it is smaller than the sum of its proper divisors (1475636291080).

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

1101221111000 is a wasteful number, since it uses less digits than its factorization.

1101221111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101221132 (or 1101221118 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1101221111000 its reverse (1111221011), we get a palindrome (1102332332011).

The spelling of 1101221111000 in words is "one trillion, one hundred one billion, two hundred twenty-one million, one hundred eleven thousand".