252211101611 has 6 divisors (see below), whose sum is σ = 293388424380. Its totient is φ = 216180944196.

The previous prime is 252211101607. The next prime is 252211101613. The reversal of 252211101611 is 116101112252.

It is a happy number.

It is not a de Polignac number, because 252211101611 - 2² = 252211101607 is a prime.

It is a super-2 number, since 2×252211101611² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252211101613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2573582621 + ... + 2573582718.

It is an arithmetic number, because the mean of its divisors is an integer number (48898070730).

Almost surely, 2^252211101611 is an apocalyptic number.

252211101611 is a deficient number, since it is larger than the sum of its proper divisors (41177322769).

252211101611 is an equidigital number, since it uses as much as digits as its factorization.

252211101611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147165353 (or 5147165346 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 23.

Adding to 252211101611 its reverse (116101112252), we get a palindrome (368312213863).

The spelling of 252211101611 in words is "two hundred fifty-two billion, two hundred eleven million, one hundred one thousand, six hundred eleven".