121200222202 has 4 divisors (see below), whose sum is σ = 181800333306. Its totient is φ = 60600111100.

The previous prime is 121200222191. The next prime is 121200222211. The reversal of 121200222202 is 202222002121.

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., 120130866801 + 1069355401 = 346599^2 + 32701^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30300055549 + ... + 30300055552.

Almost surely, 2^121200222202 is an apocalyptic number.

121200222202 is a deficient number, since it is larger than the sum of its proper divisors (60600111104).

121200222202 is an equidigital number, since it uses as much as digits as its factorization.

121200222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60600111103.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 121200222202 its reverse (202222002121), we get a palindrome (323422224323).

The spelling of 121200222202 in words is "one hundred twenty-one billion, two hundred million, two hundred twenty-two thousand, two hundred two".