20201112201021 has 8 divisors (see below), whose sum is σ = 27662784275424. Its totient is φ = 13103424130320.

The previous prime is 20201112200999. The next prime is 20201112201091. The reversal of 20201112201021 is 12010221110202.

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

It is not a de Polignac number, because 20201112201021 - 2²⁹ = 20200575330109 is a prime.

It is a super-2 number, since 2×20201112201021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201112201091) 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, 90996000795 + ... + 90996001016.

It is an arithmetic number, because the mean of its divisors is an integer number (3457848034428).

Almost surely, 2^{20201112201021} is an apocalyptic number.

It is an amenable number.

20201112201021 is a deficient number, since it is larger than the sum of its proper divisors (7461672074403).

20201112201021 is a wasteful number, since it uses less digits than its factorization.

20201112201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181992001851.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20201112201021 its reverse (12010221110202), we get a palindrome (32211333311223).

The spelling of 20201112201021 in words is "twenty trillion, two hundred one billion, one hundred twelve million, two hundred one thousand, twenty-one".