122120121021202 has 4 divisors (see below), whose sum is σ = 183180181531806. Its totient is φ = 61060060510600.

The previous prime is 122120121021181. The next prime is 122120121021247. The reversal of 122120121021202 is 202120121021221.

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., 72552593163961 + 49567527857241 = 8517781^2 + 7040421^2 .

It is a super-2 number, since 2×122120121021202² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122120121021202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30530030255299 + ... + 30530030255302.

Almost surely, 2^{122120121021202} is an apocalyptic number.

122120121021202 is a deficient number, since it is larger than the sum of its proper divisors (61060060510604).

122120121021202 is an equidigital number, since it uses as much as digits as its factorization.

122120121021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61060060510603.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122120121021202 its sum of digits (19), we get a palindrome (122120121021221).

Adding to 122120121021202 its reverse (202120121021221), we get a palindrome (324240242042423).

The spelling of 122120121021202 in words is "one hundred twenty-two trillion, one hundred twenty billion, one hundred twenty-one million, twenty-one thousand, two hundred two".