210122221012200 has 288 divisors, whose sum is σ = 848914838740800. Its totient is φ = 45500150062080.

The previous prime is 210122221012129. The next prime is 210122221012217. The reversal of 210122221012200 is 2210122221012.

It is a happy number.

210122221012200 is a `hidden beast` number, since 2 + 10 + 1 + 222 + 210 + 1 + 220 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 438612357 + ... + 439091156.

It is an arithmetic number, because the mean of its divisors is an integer number (2947620967850).

Almost surely, 2^{210122221012200} is an apocalyptic number.

210122221012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210122221012200 is an abundant number, since it is smaller than the sum of its proper divisors (638792617728600).

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

210122221012200 is a wasteful number, since it uses less digits than its factorization.

210122221012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877703561 (or 877703549 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210122221012200 its reverse (2210122221012), we get a palindrome (212332343233212).

The spelling of 210122221012200 in words is "two hundred ten trillion, one hundred twenty-two billion, two hundred twenty-one million, twelve thousand, two hundred".