121100222002 has 4 divisors (see below), whose sum is σ = 181650333006. Its totient is φ = 60550111000.

The previous prime is 121100221981. The next prime is 121100222011. The reversal of 121100222002 is 200222001121.

It is a happy number.

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., 100323594121 + 20776627881 = 316739^2 + 144141^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30275055499 + ... + 30275055502.

Almost surely, 2^121100222002 is an apocalyptic number.

121100222002 is a deficient number, since it is larger than the sum of its proper divisors (60550111004).

121100222002 is an equidigital number, since it uses as much as digits as its factorization.

121100222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60550111003.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121100222002 its reverse (200222001121), we get a palindrome (321322223123).

The spelling of 121100222002 in words is "one hundred twenty-one billion, one hundred million, two hundred twenty-two thousand, two".