121112211202 has 4 divisors (see below), whose sum is σ = 181668316806. Its totient is φ = 60556105600.

The previous prime is 121112211197. The next prime is 121112211203. The reversal of 121112211202 is 202112211121.

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

It can be written as a sum of positive squares in only one way, i.e., 72953469801 + 48158741401 = 270099^2 + 219451^2 .

It is not an unprimeable number, because it can be changed into a prime (121112211203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30278052799 + ... + 30278052802.

Almost surely, 2^121112211202 is an apocalyptic number.

121112211202 is a deficient number, since it is larger than the sum of its proper divisors (60556105604).

121112211202 is an equidigital number, since it uses as much as digits as its factorization.

121112211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60556105603.

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

Adding to 121112211202 its reverse (202112211121), we get a palindrome (323224422323).

The spelling of 121112211202 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred eleven thousand, two hundred two".