121222020010202 has 4 divisors (see below), whose sum is σ = 181833030015306. Its totient is φ = 60611010005100.

The previous prime is 121222020010177. The next prime is 121222020010211. The reversal of 121222020010202 is 202010020222121.

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., 117393779495281 + 3828240514921 = 10834841^2 + 1956589^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30305505002549 + ... + 30305505002552.

Almost surely, 2^{121222020010202} is an apocalyptic number.

121222020010202 is a deficient number, since it is larger than the sum of its proper divisors (60611010005104).

121222020010202 is an equidigital number, since it uses as much as digits as its factorization.

121222020010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60611010005103.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121222020010202 its reverse (202010020222121), we get a palindrome (323232040232323).

The spelling of 121222020010202 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twenty million, ten thousand, two hundred two".