101120001211221 has 16 divisors (see below), whose sum is σ = 135598625443008. Its totient is φ = 67027504233600.

The previous prime is 101120001211213. The next prime is 101120001211223. The reversal of 101120001211221 is 122112100021101.

It is a happy number.

It is not a de Polignac number, because 101120001211221 - 2³ = 101120001211213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101120001211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101120001211223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15860616 + ... + 21302561.

It is an arithmetic number, because the mean of its divisors is an integer number (8474914090188).

Almost surely, 2^{101120001211221} is an apocalyptic number.

It is an amenable number.

101120001211221 is a deficient number, since it is larger than the sum of its proper divisors (34478624231787).

101120001211221 is a wasteful number, since it uses less digits than its factorization.

101120001211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37168372.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101120001211221 its reverse (122112100021101), we get a palindrome (223232101232322).

The spelling of 101120001211221 in words is "one hundred one trillion, one hundred twenty billion, one million, two hundred eleven thousand, two hundred twenty-one".