20211201202231 has 8 divisors (see below), whose sum is σ = 21937294098944. Its totient is φ = 18509591892960.

The previous prime is 20211201202201. The next prime is 20211201202301. The reversal of 20211201202231 is 13220210211202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211201202231 is a prime.

It is a super-2 number, since 2×20211201202231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20211201202199 and 20211201202208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211201202201) 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, 6120895140 + ... + 6120898441.

It is an arithmetic number, because the mean of its divisors is an integer number (2742161762368).

Almost surely, 2^{20211201202231} is an apocalyptic number.

20211201202231 is a deficient number, since it is larger than the sum of its proper divisors (1726092896713).

20211201202231 is a wasteful number, since it uses less digits than its factorization.

20211201202231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241793721.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20211201202231 its reverse (13220210211202), we get a palindrome (33431411413433).

The spelling of 20211201202231 in words is "twenty trillion, two hundred eleven billion, two hundred one million, two hundred two thousand, two hundred thirty-one".