101220001210213 has 4 divisors (see below), whose sum is σ = 101220052911820. Its totient is φ = 101219949508608.

The previous prime is 101220001210169. The next prime is 101220001210291. The reversal of 101220001210213 is 312012100022101.

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 70414637343649 + 30805363866564 = 8391343^2 + 5550258^2 .

It is a cyclic number.

It is not a de Polignac number, because 101220001210213 - 2²¹ = 101219999113061 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 (101220001210313) 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, 22793628 + ... + 26869861.

It is an arithmetic number, because the mean of its divisors is an integer number (25305013227955).

Almost surely, 2^{101220001210213} is an apocalyptic number.

It is an amenable number.

101220001210213 is a deficient number, since it is larger than the sum of its proper divisors (51701607).

101220001210213 is an equidigital number, since it uses as much as digits as its factorization.

101220001210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51701606.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 101220001210213 its reverse (312012100022101), we get a palindrome (413232101232314).

The spelling of 101220001210213 in words is "one hundred one trillion, two hundred twenty billion, one million, two hundred ten thousand, two hundred thirteen".