211222121102200 has 48 divisors (see below), whose sum is σ = 528867695535480. Its totient is φ = 77989706252160.

The previous prime is 211222121102197. The next prime is 211222121102203. The reversal of 211222121102200 is 2201121222112.

It is an interprime number because it is at equal distance from previous prime (211222121102197) and next prime (211222121102203).

It is a super-2 number, since 2×211222121102200² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222121102203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40619636074 + ... + 40619641273.

Almost surely, 2^{211222121102200} is an apocalyptic number.

211222121102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211222121102200 is an abundant number, since it is smaller than the sum of its proper divisors (317645574433280).

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

211222121102200 is a wasteful number, since it uses less digits than its factorization.

211222121102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81239277376 (or 81239277367 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211222121102200 its reverse (2201121222112), we get a palindrome (213423242324312).

The spelling of 211222121102200 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred two thousand, two hundred".