10011201021021 has 16 divisors (see below), whose sum is σ = 13670246707200. Its totient is φ = 6513935778288.

The previous prime is 10011201020999. The next prime is 10011201021023. The reversal of 10011201021021 is 12012010211001.

It is not a de Polignac number, because 10011201021021 - 2⁶ = 10011201020957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10011201020988 and 10011201021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011201021023) 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, 98837161 + ... + 98938398.

It is an arithmetic number, because the mean of its divisors is an integer number (854390419200).

Almost surely, 2^{10011201021021} is an apocalyptic number.

It is an amenable number.

10011201021021 is a deficient number, since it is larger than the sum of its proper divisors (3659045686179).

10011201021021 is a wasteful number, since it uses less digits than its factorization.

10011201021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197775968.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10011201021021 its reverse (12012010211001), we get a palindrome (22023211232022).

The spelling of 10011201021021 in words is "ten trillion, eleven billion, two hundred one million, twenty-one thousand, twenty-one".