201012001220100 has 144 divisors (see below), whose sum is σ = 666214744055168. Its totient is φ = 45839490140160.

The previous prime is 201012001220071. The next prime is 201012001220101. The reversal of 201012001220100 is 1022100210102.

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

It is not an unprimeable number, because it can be changed into a prime (201012001220101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109621879 + ... + 111440478.

Almost surely, 2^{201012001220100} is an apocalyptic number.

201012001220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201012001220100 is an abundant number, since it is smaller than the sum of its proper divisors (465202742835068).

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

201012001220100 is a wasteful number, since it uses less digits than its factorization.

201012001220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221062814 (or 221062807 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201012001220100 its reverse (1022100210102), we get a palindrome (202034101430202).

The spelling of 201012001220100 in words is "two hundred one trillion, twelve billion, one million, two hundred twenty thousand, one hundred".