122100210221 has 8 divisors (see below), whose sum is σ = 133771906944. Its totient is φ = 110523793120.

The previous prime is 122100210217. The next prime is 122100210223. The reversal of 122100210221 is 122012001221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122100210221 - 2² = 122100210217 is a prime.

It is a super-2 number, since 2×122100210221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122100210196 and 122100210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100210223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23817221 + ... + 23822346.

It is an arithmetic number, because the mean of its divisors is an integer number (16721488368).

Almost surely, 2^122100210221 is an apocalyptic number.

122100210221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122100210221 is a deficient number, since it is larger than the sum of its proper divisors (11671696723).

122100210221 is a wasteful number, since it uses less digits than its factorization.

122100210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47639811.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122100210221 its reverse (122012001221), we get a palindrome (244112211442).

The spelling of 122100210221 in words is "one hundred twenty-two billion, one hundred million, two hundred ten thousand, two hundred twenty-one".