101211112213 has 4 divisors (see below), whose sum is σ = 101329766188. Its totient is φ = 101092458240.

The previous prime is 101211112207. The next prime is 101211112241. The reversal of 101211112213 is 312211112101.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6828212689 + 94382899524 = 82633^2 + 307218^2 .

It is a cyclic number.

It is not a de Polignac number, because 101211112213 - 2²⁵ = 101177557781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211112283) 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, 59325708 + ... + 59327413.

It is an arithmetic number, because the mean of its divisors is an integer number (25332441547).

Almost surely, 2^101211112213 is an apocalyptic number.

It is an amenable number.

101211112213 is a deficient number, since it is larger than the sum of its proper divisors (118653975).

101211112213 is an equidigital number, since it uses as much as digits as its factorization.

101211112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118653974.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 101211112213 its reverse (312211112101), we get a palindrome (413422224314).

The spelling of 101211112213 in words is "one hundred one billion, two hundred eleven million, one hundred twelve thousand, two hundred thirteen".