210001002121222 has 16 divisors (see below), whose sum is σ = 341263719713952. Its totient is φ = 96343158962880.

The previous prime is 210001002121159. The next prime is 210001002121283. The reversal of 210001002121222 is 222121200100012.

It is a happy number.

210001002121222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210001002121196 and 210001002121205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24182515479 + ... + 24182524162.

It is an arithmetic number, because the mean of its divisors is an integer number (21328982482122).

Almost surely, 2^{210001002121222} is an apocalyptic number.

210001002121222 is a deficient number, since it is larger than the sum of its proper divisors (131262717592730).

210001002121222 is a wasteful number, since it uses less digits than its factorization.

210001002121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48365039823.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210001002121222 its reverse (222121200100012), we get a palindrome (432122202221234).

The spelling of 210001002121222 in words is "two hundred ten trillion, one billion, two million, one hundred twenty-one thousand, two hundred twenty-two".