1002212201000 has 32 divisors (see below), whose sum is σ = 2345176552680. Its totient is φ = 400884880000.

The previous prime is 1002212200973. The next prime is 1002212201017. The reversal of 1002212201000 is 1022122001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 54654023524 + 947558177476 = 233782^2 + 973426^2 .

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, 501105101 + ... + 501107100.

Almost surely, 2^{1002212201000} is an apocalyptic number.

1002212201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002212201000 is an abundant number, since it is smaller than the sum of its proper divisors (1342964351680).

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

1002212201000 is a wasteful number, since it uses less digits than its factorization.

1002212201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002212222 (or 1002212208 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1002212201000 its reverse (1022122001), we get a palindrome (1003234323001).

The spelling of 1002212201000 in words is "one trillion, two billion, two hundred twelve million, two hundred one thousand".