1220122020202 has 8 divisors (see below), whose sum is σ = 1838037893796. Its totient is φ = 607442722272.

The previous prime is 1220122020137. The next prime is 1220122020211. The reversal of 1220122020202 is 2020202210221.

It can be written as a sum of positive squares in 2 ways, for example, as 1217162769001 + 2959251201 = 1103251^2 + 54399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1220122020202² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309143333 + ... + 1309144264.

Almost surely, 2^{1220122020202} is an apocalyptic number.

1220122020202 is a deficient number, since it is larger than the sum of its proper divisors (617915873594).

1220122020202 is a wasteful number, since it uses less digits than its factorization.

1220122020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618287832.

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

Adding to 1220122020202 its reverse (2020202210221), we get a palindrome (3240324230423).

The spelling of 1220122020202 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, twenty thousand, two hundred two".