10021202001 has 24 divisors (see below), whose sum is σ = 14902742400. Its totient is φ = 6485054400.

The previous prime is 10021201909. The next prime is 10021202003. The reversal of 10021202001 is 10020212001.

It is not a de Polignac number, because 10021202001 - 2¹⁵ = 10021169233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10021202003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5196 + ... + 141666.

It is an arithmetic number, because the mean of its divisors is an integer number (620947600).

Almost surely, 2^10021202001 is an apocalyptic number.

It is an amenable number.

10021202001 is a deficient number, since it is larger than the sum of its proper divisors (4881540399).

10021202001 is a wasteful number, since it uses less digits than its factorization.

10021202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136717 (or 136714 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10021202001 its reverse (10020212001), we get a palindrome (20041414002).

The spelling of 10021202001 in words is "ten billion, twenty-one million, two hundred two thousand, one".