1122102100221 has 8 divisors (see below), whose sum is σ = 1497890106720. Its totient is φ = 747191080272.

The previous prime is 1122102100219. The next prime is 1122102100289. The reversal of 1122102100221 is 1220012012211.

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

It is not a de Polignac number, because 1122102100221 - 2¹ = 1122102100219 is a prime.

It is a super-2 number, since 2×1122102100221² (a number of 25 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 1122102100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122102100291) 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, 219243651 + ... + 219248768.

It is an arithmetic number, because the mean of its divisors is an integer number (187236263340).

Almost surely, 2^{1122102100221} is an apocalyptic number.

It is an amenable number.

1122102100221 is a deficient number, since it is larger than the sum of its proper divisors (375788006499).

1122102100221 is an equidigital number, since it uses as much as digits as its factorization.

1122102100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438493275.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1122102100221 its reverse (1220012012211), we get a palindrome (2342114112432).

The spelling of 1122102100221 in words is "one trillion, one hundred twenty-two billion, one hundred two million, one hundred thousand, two hundred twenty-one".