121222020202 has 4 divisors (see below), whose sum is σ = 181833030306. Its totient is φ = 60611010100.

The previous prime is 121222020181. The next prime is 121222020263. The reversal of 121222020202 is 202020222121.

121222020202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 117677127681 + 3544892521 = 343041^2 + 59539^2 .

It is a super-2 number, since 2×121222020202² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30305505049 + ... + 30305505052.

Almost surely, 2^121222020202 is an apocalyptic number.

121222020202 is a deficient number, since it is larger than the sum of its proper divisors (60611010104).

121222020202 is an equidigital number, since it uses as much as digits as its factorization.

121222020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60611010103.

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

Adding to 121222020202 its reverse (202020222121), we get a palindrome (323242242323).

The spelling of 121222020202 in words is "one hundred twenty-one billion, two hundred twenty-two million, twenty thousand, two hundred two".