10101200101021 has 16 divisors (see below), whose sum is σ = 10173863697984. Its totient is φ = 10028673016704.

The previous prime is 10101200100967. The next prime is 10101200101037. The reversal of 10101200101021 is 12010100210101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10101200101021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101200100989 and 10101200101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101200105021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686541961 + ... + 686556673.

It is an arithmetic number, because the mean of its divisors is an integer number (635866481124).

Almost surely, 2^{10101200101021} is an apocalyptic number.

It is an amenable number.

10101200101021 is a deficient number, since it is larger than the sum of its proper divisors (72663596963).

10101200101021 is a wasteful number, since it uses less digits than its factorization.

10101200101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19020.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10101200101021 its reverse (12010100210101), we get a palindrome (22111300311122).

The spelling of 10101200101021 in words is "ten trillion, one hundred one billion, two hundred million, one hundred one thousand, twenty-one".