221010102200 has 48 divisors (see below), whose sum is σ = 524781456480. Its totient is φ = 86523100160.

The previous prime is 221010102193. The next prime is 221010102277. The reversal of 221010102200 is 2201010122.

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, 11746457 + ... + 11765256.

It is an arithmetic number, because the mean of its divisors is an integer number (10932947010).

Almost surely, 2^221010102200 is an apocalyptic number.

221010102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221010102200 is an abundant number, since it is smaller than the sum of its proper divisors (303771354280).

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

221010102200 is a wasteful number, since it uses less digits than its factorization.

221010102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23511776 (or 23511767 counting only the distinct ones).

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

Adding to 221010102200 its reverse (2201010122), we get a palindrome (223211112322).

The spelling of 221010102200 in words is "two hundred twenty-one billion, ten million, one hundred two thousand, two hundred".