1102021012221 has 8 divisors (see below), whose sum is σ = 1471646517600. Its totient is φ = 733538090832.

The previous prime is 1102021012217. The next prime is 1102021012229. The reversal of 1102021012221 is 1222101202011.

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

It is not a de Polignac number, because 1102021012221 - 2² = 1102021012217 is a prime.

It is a super-2 number, since 2×1102021012221² (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 1102021012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102021012229) 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, 285643746 + ... + 285647603.

It is an arithmetic number, because the mean of its divisors is an integer number (183955814700).

Almost surely, 2^{1102021012221} is an apocalyptic number.

It is an amenable number.

1102021012221 is a deficient number, since it is larger than the sum of its proper divisors (369625505379).

1102021012221 is an equidigital number, since it uses as much as digits as its factorization.

1102021012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571291995.

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

Adding to 1102021012221 its reverse (1222101202011), we get a palindrome (2324122214232).

The spelling of 1102021012221 in words is "one trillion, one hundred two billion, twenty-one million, twelve thousand, two hundred twenty-one".