121122200111210 has 8 divisors (see below), whose sum is σ = 218019960200196. Its totient is φ = 48448880044480.

The previous prime is 121122200111161. The next prime is 121122200111251. The reversal of 121122200111210 is 12111002221121.

It can be written as a sum of positive squares in 2 ways, for example, as 113223070640689 + 7899129470521 = 10640633^2 + 2810539^2 .

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

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, 6056110005551 + ... + 6056110005570.

Almost surely, 2^{121122200111210} is an apocalyptic number.

121122200111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121122200111210 is a deficient number, since it is larger than the sum of its proper divisors (96897760088986).

121122200111210 is a wasteful number, since it uses less digits than its factorization.

121122200111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12112220011128.

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

Adding to 121122200111210 its reverse (12111002221121), we get a palindrome (133233202332331).

The spelling of 121122200111210 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred million, one hundred eleven thousand, two hundred ten".