2201212021231 has 8 divisors (see below), whose sum is σ = 2239126892064. Its totient is φ = 2163356164320.

The previous prime is 2201212021189. The next prime is 2201212021237. The reversal of 2201212021231 is 1321202121022.

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-2201212021231 is a prime.

It is a super-2 number, since 2×2201212021231² (a number of 25 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 = 2201212021199 and 2201212021208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201212021237) 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, 14678236 + ... + 14827441.

It is an arithmetic number, because the mean of its divisors is an integer number (279890861508).

Almost surely, 2^{2201212021231} is an apocalyptic number.

2201212021231 is a deficient number, since it is larger than the sum of its proper divisors (37914870833).

2201212021231 is a wasteful number, since it uses less digits than its factorization.

2201212021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29506961.

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

Adding to 2201212021231 its reverse (1321202121022), we get a palindrome (3522414142253).

The spelling of 2201212021231 in words is "two trillion, two hundred one billion, two hundred twelve million, twenty-one thousand, two hundred thirty-one".