201121021210102 has 64 divisors (see below), whose sum is σ = 353972865028608. Its totient is φ = 83905769376000.

The previous prime is 201121021210099. The next prime is 201121021210127. The reversal of 201121021210102 is 201012120121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492484777 + ... + 492892987.

It is an arithmetic number, because the mean of its divisors is an integer number (5530826016072).

Almost surely, 2^{201121021210102} is an apocalyptic number.

201121021210102 is a deficient number, since it is larger than the sum of its proper divisors (152851843818506).

201121021210102 is a wasteful number, since it uses less digits than its factorization.

201121021210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410165.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201121021210102 its reverse (201012120121102), we get a palindrome (402133141331204).

The spelling of 201121021210102 in words is "two hundred one trillion, one hundred twenty-one billion, twenty-one million, two hundred ten thousand, one hundred two".