10201021221001 has 8 divisors (see below), whose sum is σ = 11031680499840. Its totient is φ = 9376928419152.

The previous prime is 10201021220983. The next prime is 10201021221007. The reversal of 10201021221001 is 10012212010201.

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

It is a cyclic number.

It is not a de Polignac number, because 10201021221001 - 2¹¹ = 10201021218953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (10201021221007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1641616015 + ... + 1641622228.

It is an arithmetic number, because the mean of its divisors is an integer number (1378960062480).

Almost surely, 2^{10201021221001} is an apocalyptic number.

It is an amenable number.

10201021221001 is a deficient number, since it is larger than the sum of its proper divisors (830659278839).

10201021221001 is a wasteful number, since it uses less digits than its factorization.

10201021221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283238495.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10201021221001 its reverse (10012212010201), we get a palindrome (20213233231202).

The spelling of 10201021221001 in words is "ten trillion, two hundred one billion, twenty-one million, two hundred twenty-one thousand, one".