202122221101231 has 4 divisors (see below), whose sum is σ = 204084572762512. Its totient is φ = 200159869439952.

The previous prime is 202122221101183. The next prime is 202122221101289. The reversal of 202122221101231 is 132101122221202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202122221101231 is a prime.

It is a super-2 number, since 2×202122221101231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122221101531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981175830486 + ... + 981175830691.

It is an arithmetic number, because the mean of its divisors is an integer number (51021143190628).

Almost surely, 2^{202122221101231} is an apocalyptic number.

202122221101231 is a deficient number, since it is larger than the sum of its proper divisors (1962351661281).

202122221101231 is a wasteful number, since it uses less digits than its factorization.

202122221101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962351661280.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 202122221101231 its reverse (132101122221202), we get a palindrome (334223343322433).

The spelling of 202122221101231 in words is "two hundred two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred one thousand, two hundred thirty-one".