201210022100 has 36 divisors (see below), whose sum is σ = 445915667904. Its totient is φ = 78771581280.

The previous prime is 201210022099. The next prime is 201210022157. The reversal of 201210022100 is 1220012102.

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 11 ways as a sum of consecutive naturals, for example, 21400622 + ... + 21410021.

Almost surely, 2^201210022100 is an apocalyptic number.

201210022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201210022100 is an abundant number, since it is smaller than the sum of its proper divisors (244705645804).

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

201210022100 is a wasteful number, since it uses less digits than its factorization.

201210022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42810704 (or 42810697 counting only the distinct ones).

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

Adding to 201210022100 its reverse (1220012102), we get a palindrome (202430034202).

The spelling of 201210022100 in words is "two hundred one billion, two hundred ten million, twenty-two thousand, one hundred".