20200101021001 has 16 divisors (see below), whose sum is σ = 22044832432128. Its totient is φ = 18356764093200.

The previous prime is 20200101020999. The next prime is 20200101021029. The reversal of 20200101021001 is 10012010100202.

It is a cyclic number.

It is not a de Polignac number, because 20200101021001 - 2¹ = 20200101020999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20200101024001) 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, 349895800 + ... + 349953526.

It is an arithmetic number, because the mean of its divisors is an integer number (1377802027008).

Almost surely, 2^{20200101021001} is an apocalyptic number.

It is an amenable number.

20200101021001 is a deficient number, since it is larger than the sum of its proper divisors (1844731411127).

20200101021001 is a wasteful number, since it uses less digits than its factorization.

20200101021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69252.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20200101021001 its reverse (10012010100202), we get a palindrome (30212111121203).

The spelling of 20200101021001 in words is "twenty trillion, two hundred billion, one hundred one million, twenty-one thousand, one".