101211222213 has 6 divisors (see below), whose sum is σ = 146193987654. Its totient is φ = 67474148136.

The previous prime is 101211222197. The next prime is 101211222223. The reversal of 101211222213 is 312222112101.

It can be written as a sum of positive squares in only one way, i.e., 63729487809 + 37481734404 = 252447^2 + 193602^2 .

It is not a de Polignac number, because 101211222213 - 2⁴ = 101211222197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211222223) 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, 5622845670 + ... + 5622845687.

It is an arithmetic number, because the mean of its divisors is an integer number (24365664609).

Almost surely, 2^101211222213 is an apocalyptic number.

It is an amenable number.

101211222213 is a deficient number, since it is larger than the sum of its proper divisors (44982765441).

101211222213 is a wasteful number, since it uses less digits than its factorization.

101211222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11245691363 (or 11245691360 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 101211222213 its reverse (312222112101), we get a palindrome (413433334314).

The spelling of 101211222213 in words is "one hundred one billion, two hundred eleven million, two hundred twenty-two thousand, two hundred thirteen".