201210121001100 has 72 divisors (see below), whose sum is σ = 583550772197008. Its totient is φ = 53528583225600.

The previous prime is 201210121001093. The next prime is 201210121001261. The reversal of 201210121001100 is 1100121012102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 796429999 + ... + 796682598.

Almost surely, 2^{201210121001100} is an apocalyptic number.

201210121001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201210121001100 is an abundant number, since it is smaller than the sum of its proper divisors (382340651195908).

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

201210121001100 is a wasteful number, since it uses less digits than its factorization.

201210121001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593113035 (or 1593113028 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201210121001100 its reverse (1100121012102), we get a palindrome (202310242013202).

It can be divided in two parts, 20121012 and 1001100, that added together give a palindrome (21122112).

The spelling of 201210121001100 in words is "two hundred one trillion, two hundred ten billion, one hundred twenty-one million, one thousand, one hundred".