101221201200111 has 8 divisors (see below), whose sum is σ = 135015521546880. Its totient is φ = 67453840826712.

The previous prime is 101221201200101. The next prime is 101221201200131. The reversal of 101221201200111 is 111002102122101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101221201200111 - 2⁷ = 101221201199983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221201200101) 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 7 ways as a sum of consecutive naturals, for example, 6739984581 + ... + 6739999598.

It is an arithmetic number, because the mean of its divisors is an integer number (16876940193360).

Almost surely, 2^{101221201200111} is an apocalyptic number.

101221201200111 is a deficient number, since it is larger than the sum of its proper divisors (33794320346769).

101221201200111 is a wasteful number, since it uses less digits than its factorization.

101221201200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13479986685.

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

Adding to 101221201200111 its reverse (111002102122101), we get a palindrome (212223303322212).

The spelling of 101221201200111 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred one million, two hundred thousand, one hundred eleven".