201020212101100 has 36 divisors (see below), whose sum is σ = 498530126012464. Its totient is φ = 68921215577280.

The previous prime is 201020212101053. The next prime is 201020212101109. The reversal of 201020212101100 is 1101212020102.

It is not an unprimeable number, because it can be changed into a prime (201020212101109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143585865087 + ... + 143585866486.

Almost surely, 2^{201020212101100} is an apocalyptic number.

201020212101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020212101100 is an abundant number, since it is smaller than the sum of its proper divisors (297509913911364).

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

201020212101100 is a wasteful number, since it uses less digits than its factorization.

201020212101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287171731594 (or 287171731587 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201020212101100 its reverse (1101212020102), we get a palindrome (202121424121202).

The spelling of 201020212101100 in words is "two hundred one trillion, twenty billion, two hundred twelve million, one hundred one thousand, one hundred".