201121121210102 has 16 divisors (see below), whose sum is σ = 303368384291760. Its totient is φ = 99998331372288.

The previous prime is 201121121210101. The next prime is 201121121210111. The reversal of 201121121210102 is 201012121121102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121121210101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89962718 + ... + 92171214.

It is an arithmetic number, because the mean of its divisors is an integer number (18960524018235).

Almost surely, 2^{201121121210102} is an apocalyptic number.

201121121210102 is a deficient number, since it is larger than the sum of its proper divisors (102247263081658).

201121121210102 is a wasteful number, since it uses less digits than its factorization.

201121121210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463055.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201121121210102 its reverse (201012121121102), we get a palindrome (402133242331204).

The spelling of 201121121210102 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred ten thousand, one hundred two".