1102221100021 has 8 divisors (see below), whose sum is σ = 1120368569600. Its totient is φ = 1084076155440.

The previous prime is 1102221099971. The next prime is 1102221100069. The reversal of 1102221100021 is 1200011222011.

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

It is a cyclic number.

It is not a de Polignac number, because 1102221100021 - 2³¹ = 1100073616373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102221099974 and 1102221100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102221100621) 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, 259240 + ... + 1507198.

It is an arithmetic number, because the mean of its divisors is an integer number (140046071200).

Almost surely, 2^{1102221100021} is an apocalyptic number.

It is an amenable number.

1102221100021 is a deficient number, since it is larger than the sum of its proper divisors (18147469579).

1102221100021 is a wasteful number, since it uses less digits than its factorization.

1102221100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262499.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1102221100021 its reverse (1200011222011), we get a palindrome (2302232322032).

The spelling of 1102221100021 in words is "one trillion, one hundred two billion, two hundred twenty-one million, one hundred thousand, twenty-one".