101222113231 has 4 divisors (see below), whose sum is σ = 101230267072. Its totient is φ = 101213959392.

The previous prime is 101222113207. The next prime is 101222113249. The reversal of 101222113231 is 132311222101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132311222101 = 3163 ⋅41830927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101222113231 is a prime.

It is a super-2 number, since 2×101222113231² (a number of 23 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 = 101222113199 and 101222113208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222113261) 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, 4058271 + ... + 4083136.

It is an arithmetic number, because the mean of its divisors is an integer number (25307566768).

Almost surely, 2^101222113231 is an apocalyptic number.

101222113231 is a deficient number, since it is larger than the sum of its proper divisors (8153841).

101222113231 is an equidigital number, since it uses as much as digits as its factorization.

101222113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8153840.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101222113231 its reverse (132311222101), we get a palindrome (233533335332).

The spelling of 101222113231 in words is "one hundred one billion, two hundred twenty-two million, one hundred thirteen thousand, two hundred thirty-one".