1021100201 has 8 divisors (see below), whose sum is σ = 1128028800. Its totient is φ = 916521840.

The previous prime is 1021100191. The next prime is 1021100209. The reversal of 1021100201 is 1020011201.

1021100201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021100201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021100209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586646 + ... + 588383.

It is an arithmetic number, because the mean of its divisors is an integer number (141003600).

Almost surely, 2^1021100201 is an apocalyptic number.

1021100201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1021100201 is a deficient number, since it is larger than the sum of its proper divisors (106928599).

1021100201 is a wasteful number, since it uses less digits than its factorization.

1021100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175119.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1021100201 is about 31954.6585179689. The cubic root of 1021100201 is about 1006.9845034689.

Adding to 1021100201 its reverse (1020011201), we get a palindrome (2041111402).

The spelling of 1021100201 in words is "one billion, twenty-one million, one hundred thousand, two hundred one".