1002222021100 has 36 divisors (see below), whose sum is σ = 2175073112800. Its totient is φ = 400842480960.

The previous prime is 1002222021071. The next prime is 1002222021107. The reversal of 1002222021100 is 11202222001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1002222021107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297166 + ... + 1446634.

Almost surely, 2^{1002222021100} is an apocalyptic number.

1002222021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002222021100 is an abundant number, since it is smaller than the sum of its proper divisors (1172851091700).

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

1002222021100 is a wasteful number, since it uses less digits than its factorization.

1002222021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158202 (or 1158195 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002222021100 its reverse (11202222001), we get a palindrome (1013424243101).

The spelling of 1002222021100 in words is "one trillion, two billion, two hundred twenty-two million, twenty-one thousand, one hundred".