20210101121001 has 8 divisors (see below), whose sum is σ = 29396510721504. Its totient is φ = 12248546133920.

The previous prime is 20210101120987. The next prime is 20210101121011. The reversal of 20210101121001 is 10012110101202.

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 20210101121001 - 2¹⁰ = 20210101119977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20210101121011) 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, 306213653316 + ... + 306213653381.

It is an arithmetic number, because the mean of its divisors is an integer number (3674563840188).

Almost surely, 2^{20210101121001} is an apocalyptic number.

It is an amenable number.

20210101121001 is a deficient number, since it is larger than the sum of its proper divisors (9186409600503).

20210101121001 is a wasteful number, since it uses less digits than its factorization.

20210101121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612427306711.

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

Adding to 20210101121001 its reverse (10012110101202), we get a palindrome (30222211222203).

The spelling of 20210101121001 in words is "twenty trillion, two hundred ten billion, one hundred one million, one hundred twenty-one thousand, one".