1022212221102 has 24 divisors (see below), whose sum is σ = 2214813995784. Its totient is φ = 340734199344.

The previous prime is 1022212221097. The next prime is 1022212221103. The reversal of 1022212221102 is 2011222122201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022212221103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2437633 + ... + 2826035.

It is an arithmetic number, because the mean of its divisors is an integer number (92283916491).

Almost surely, 2^{1022212221102} is an apocalyptic number.

1022212221102 is an abundant number, since it is smaller than the sum of its proper divisors (1192601774682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022212221102 is a wasteful number, since it uses less digits than its factorization.

1022212221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534624 (or 534621 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1022212221102 its reverse (2011222122201), we get a palindrome (3033434343303).

The spelling of 1022212221102 in words is "one trillion, twenty-two billion, two hundred twelve million, two hundred twenty-one thousand, one hundred two".