1101201021100 has 36 divisors (see below), whose sum is σ = 2391547674208. Its totient is φ = 440122536000.

The previous prime is 1101201021031. The next prime is 1101201021119. The reversal of 1101201021100 is 11201021011.

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

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, 4349691 + ... + 4595890.

Almost surely, 2^{1101201021100} is an apocalyptic number.

1101201021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101201021100 is an abundant number, since it is smaller than the sum of its proper divisors (1290346653108).

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

1101201021100 is a wasteful number, since it uses less digits than its factorization.

1101201021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8946826 (or 8946819 counting only the distinct ones).

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

Adding to 1101201021100 its reverse (11201021011), we get a palindrome (1112402042111).

The spelling of 1101201021100 in words is "one trillion, one hundred one billion, two hundred one million, twenty-one thousand, one hundred".