121202212222202 has 4 divisors (see below), whose sum is σ = 181803318333306. Its totient is φ = 60601106111100.

The previous prime is 121202212222183. The next prime is 121202212222261. The reversal of 121202212222202 is 202222212202121.

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., 120141087670321 + 1061124551881 = 10960889^2 + 1030109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30300553055549 + ... + 30300553055552.

Almost surely, 2^{121202212222202} is an apocalyptic number.

121202212222202 is a deficient number, since it is larger than the sum of its proper divisors (60601106111104).

121202212222202 is an equidigital number, since it uses as much as digits as its factorization.

121202212222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60601106111103.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 121202212222202 its reverse (202222212202121), we get a palindrome (323424424424323).

The spelling of 121202212222202 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred twelve million, two hundred twenty-two thousand, two hundred two".