1012111201100 has 72 divisors (see below), whose sum is σ = 2206502733120. Its totient is φ = 402961950720.

The previous prime is 1012111201027. The next prime is 1012111201103. The reversal of 1012111201100 is 11021112101.

It is not an unprimeable number, because it can be changed into a prime (1012111201103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58235612 + ... + 58252988.

Almost surely, 2^{1012111201100} is an apocalyptic number.

1012111201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012111201100 is an abundant number, since it is smaller than the sum of its proper divisors (1194391532020).

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

1012111201100 is a wasteful number, since it uses less digits than its factorization.

1012111201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20067 (or 20060 counting only the distinct ones).

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

Adding to 1012111201100 its reverse (11021112101), we get a palindrome (1023132313201).

The spelling of 1012111201100 in words is "one trillion, twelve billion, one hundred eleven million, two hundred one thousand, one hundred".