101200111111221 has 8 divisors (see below), whose sum is σ = 136641500234880. Its totient is φ = 66612731364192.

The previous prime is 101200111111213. The next prime is 101200111111223. The reversal of 101200111111221 is 122111111002101.

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

It is not a de Polignac number, because 101200111111221 - 2³ = 101200111111213 is a prime.

It is a super-2 number, since 2×101200111111221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101200111111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200111111223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213502343880 + ... + 213502344353.

It is an arithmetic number, because the mean of its divisors is an integer number (17080187529360).

Almost surely, 2^{101200111111221} is an apocalyptic number.

It is an amenable number.

101200111111221 is a deficient number, since it is larger than the sum of its proper divisors (35441389123659).

101200111111221 is an equidigital number, since it uses as much as digits as its factorization.

101200111111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427004688315.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101200111111221 its reverse (122111111002101), we get a palindrome (223311222113322).

The spelling of 101200111111221 in words is "one hundred one trillion, two hundred billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty-one".