121022111212202 has 4 divisors (see below), whose sum is σ = 181533166818306. Its totient is φ = 60511055606100.

The previous prime is 121022111212199. The next prime is 121022111212231. The reversal of 121022111212202 is 202212111220121.

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., 60750629244361 + 60271481967841 = 7794269^2 + 7763471^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30255527803049 + ... + 30255527803052.

Almost surely, 2^{121022111212202} is an apocalyptic number.

121022111212202 is a deficient number, since it is larger than the sum of its proper divisors (60511055606104).

121022111212202 is an equidigital number, since it uses as much as digits as its factorization.

121022111212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60511055606103.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121022111212202 its reverse (202212111220121), we get a palindrome (323234222432323).

The spelling of 121022111212202 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred eleven million, two hundred twelve thousand, two hundred two".