1021220222102 has 16 divisors (see below), whose sum is σ = 1549490932080. Its totient is φ = 504726571008.

The previous prime is 1021220222069. The next prime is 1021220222111. The reversal of 1021220222102 is 2012220221201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214448 + ... + 1445139.

It is an arithmetic number, because the mean of its divisors is an integer number (96843183255).

Almost surely, 2^{1021220222102} is an apocalyptic number.

1021220222102 is a deficient number, since it is larger than the sum of its proper divisors (528270709978).

1021220222102 is a wasteful number, since it uses less digits than its factorization.

1021220222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663135.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1021220222102 its reverse (2012220221201), we get a palindrome (3033440443303).

Subtracting 1021220222102 from its reverse (2012220221201), we obtain a palindrome (990999999099).

The spelling of 1021220222102 in words is "one trillion, twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, one hundred two".