101221040030111 has 4 divisors (see below), whose sum is σ = 104486234869824. Its totient is φ = 97955845190400.

The previous prime is 101221040030087. The next prime is 101221040030147. The reversal of 101221040030111 is 111030040122101.

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

It is a cyclic number.

It is not a de Polignac number, because 101221040030111 - 2³⁴ = 101203860160927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101221040030111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221040030711) 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, 1632597419810 + ... + 1632597419871.

It is an arithmetic number, because the mean of its divisors is an integer number (26121558717456).

Almost surely, 2^{101221040030111} is an apocalyptic number.

101221040030111 is a deficient number, since it is larger than the sum of its proper divisors (3265194839713).

101221040030111 is an equidigital number, since it uses as much as digits as its factorization.

101221040030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265194839712.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 101221040030111 its reverse (111030040122101), we get a palindrome (212251080152212).

The spelling of 101221040030111 in words is "one hundred one trillion, two hundred twenty-one billion, forty million, thirty thousand, one hundred eleven".