1002221021210 has 16 divisors (see below), whose sum is σ = 1804080468456. Its totient is φ = 400870046208.

The previous prime is 1002221021203. The next prime is 1002221021233. The reversal of 1002221021210 is 121201222001.

It can be written as a sum of positive squares in 4 ways, for example, as 869009890849 + 133211130361 = 932207^2 + 364981^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2064947 + ... + 2503686.

Almost surely, 2^{1002221021210} is an apocalyptic number.

1002221021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002221021210 is a deficient number, since it is larger than the sum of its proper divisors (801859447246).

1002221021210 is a wasteful number, since it uses less digits than its factorization.

1002221021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590577.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1002221021210 its reverse (121201222001), we get a palindrome (1123422243211).

The spelling of 1002221021210 in words is "one trillion, two billion, two hundred twenty-one million, twenty-one thousand, two hundred ten".