1021222010200 has 96 divisors (see below), whose sum is σ = 2729218577760. Its totient is φ = 348109286400.

The previous prime is 1021222010197. The next prime is 1021222010239. The reversal of 1021222010200 is 20102221201.

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 23 ways as a sum of consecutive naturals, for example, 1866021 + ... + 2350420.

It is an arithmetic number, because the mean of its divisors is an integer number (28429360185).

Almost surely, 2^{1021222010200} is an apocalyptic number.

1021222010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021222010200 is an abundant number, since it is smaller than the sum of its proper divisors (1707996567560).

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

1021222010200 is a wasteful number, since it uses less digits than its factorization.

1021222010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216637 (or 4216628 counting only the distinct ones).

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

Adding to 1021222010200 its reverse (20102221201), we get a palindrome (1041324231401).

The spelling of 1021222010200 in words is "one trillion, twenty-one billion, two hundred twenty-two million, ten thousand, two hundred".