1102022021221 has 16 divisors (see below), whose sum is σ = 1215680462208. Its totient is φ = 990635032000.

The previous prime is 1102022021213. The next prime is 1102022021227. The reversal of 1102022021221 is 1221202202011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1102022021221 - 2³ = 1102022021213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102022021195 and 1102022021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102022021227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217200 + ... + 1500406.

It is an arithmetic number, because the mean of its divisors is an integer number (75980028888).

Almost surely, 2^{1102022021221} is an apocalyptic number.

1102022021221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1102022021221 is a deficient number, since it is larger than the sum of its proper divisors (113658440987).

1102022021221 is a wasteful number, since it uses less digits than its factorization.

1102022021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284092.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1102022021221 its reverse (1221202202011), we get a palindrome (2323224223232).

The spelling of 1102022021221 in words is "one trillion, one hundred two billion, twenty-two million, twenty-one thousand, two hundred twenty-one".