1102222112021 has 4 divisors (see below), whose sum is σ = 1102410306732. Its totient is φ = 1102033917312.

The previous prime is 1102222111987. The next prime is 1102222112077. The reversal of 1102222112021 is 1202112222011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1085578531921 + 16643580100 = 1041911^2 + 129010^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102222112021 - 2¹⁸ = 1102221849877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102222112521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94088570 + ... + 94100283.

It is an arithmetic number, because the mean of its divisors is an integer number (275602576683).

Almost surely, 2^{1102222112021} is an apocalyptic number.

It is an amenable number.

1102222112021 is a deficient number, since it is larger than the sum of its proper divisors (188194711).

1102222112021 is an equidigital number, since it uses as much as digits as its factorization.

1102222112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188194710.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1102222112021 its reverse (1202112222011), we get a palindrome (2304334334032).

The spelling of 1102222112021 in words is "one trillion, one hundred two billion, two hundred twenty-two million, one hundred twelve thousand, twenty-one".