10221001020200 has 24 divisors (see below), whose sum is σ = 23763827372430. Its totient is φ = 4088400408000.

The previous prime is 10221001020161. The next prime is 10221001020287. The reversal of 10221001020200 is 202010012201.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9211261420036 + 1009739600164 = 3035006^2 + 1004858^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25552502351 + ... + 25552502750.

Almost surely, 2^{10221001020200} is an apocalyptic number.

10221001020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221001020200 is an abundant number, since it is smaller than the sum of its proper divisors (13542826352230).

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

10221001020200 is a wasteful number, since it uses less digits than its factorization.

10221001020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51105005117 (or 51105005108 counting only the distinct ones).

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

Adding to 10221001020200 its reverse (202010012201), we get a palindrome (10423011032401).

The spelling of 10221001020200 in words is "ten trillion, two hundred twenty-one billion, one million, twenty thousand, two hundred".