121002202120111 has 4 divisors (see below), whose sum is σ = 130310063821672. Its totient is φ = 111694340418552.

The previous prime is 121002202120103. The next prime is 121002202120139. The reversal of 121002202120111 is 111021202200121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121002202120111 - 2³ = 121002202120103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002202120141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4653930850761 + ... + 4653930850786.

It is an arithmetic number, because the mean of its divisors is an integer number (32577515955418).

Almost surely, 2^{121002202120111} is an apocalyptic number.

121002202120111 is a deficient number, since it is larger than the sum of its proper divisors (9307861701561).

121002202120111 is an equidigital number, since it uses as much as digits as its factorization.

121002202120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9307861701560.

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

Adding to 121002202120111 its reverse (111021202200121), we get a palindrome (232023404320232).

The spelling of 121002202120111 in words is "one hundred twenty-one trillion, two billion, two hundred two million, one hundred twenty thousand, one hundred eleven".