1000121021222 has 8 divisors (see below), whose sum is σ = 1502377992936. Its totient is φ = 499328356912.

The previous prime is 1000121021213. The next prime is 1000121021311. The reversal of 1000121021222 is 2221201210001.

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

It is a junction number, because it is equal to n+sod(n) for n = 1000121021197 and 1000121021206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366075143 + ... + 366077874.

It is an arithmetic number, because the mean of its divisors is an integer number (187797249117).

Almost surely, 2^{1000121021222} is an apocalyptic number.

1000121021222 is a deficient number, since it is larger than the sum of its proper divisors (502256971714).

1000121021222 is an equidigital number, since it uses as much as digits as its factorization.

1000121021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732153702.

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

Adding to 1000121021222 its reverse (2221201210001), we get a palindrome (3221322231223).

The spelling of 1000121021222 in words is "one trillion, one hundred twenty-one million, twenty-one thousand, two hundred twenty-two".