210121022201012 has 24 divisors (see below), whose sum is σ = 397654203609600. Its totient is φ = 96573163722336.

The previous prime is 210121022201011. The next prime is 210121022201023. The reversal of 210121022201012 is 210102220121012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210121022201011) 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, 8453520812 + ... + 8453545667.

It is an arithmetic number, because the mean of its divisors is an integer number (16568925150400).

Almost surely, 2^{210121022201012} is an apocalyptic number.

It is an amenable number.

210121022201012 is a deficient number, since it is larger than the sum of its proper divisors (187533181408588).

210121022201012 is a wasteful number, since it uses less digits than its factorization.

210121022201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16907066735 (or 16907066733 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210121022201012 its reverse (210102220121012), we get a palindrome (420223242322024).

The spelling of 210121022201012 in words is "two hundred ten trillion, one hundred twenty-one billion, twenty-two million, two hundred one thousand, twelve".