1220020012202 has 4 divisors (see below), whose sum is σ = 1830030018306. Its totient is φ = 610010006100.

The previous prime is 1220020012201. The next prime is 1220020012231. The reversal of 1220020012202 is 2022100200221.

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., 1168731804241 + 51288207961 = 1081079^2 + 226469^2 .

It is not an unprimeable number, because it can be changed into a prime (1220020012201) by changing a digit.

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 as a sum of consecutive naturals, namely, 305005003049 + ... + 305005003052.

Almost surely, 2^{1220020012202} is an apocalyptic number.

1220020012202 is a deficient number, since it is larger than the sum of its proper divisors (610010006104).

1220020012202 is an equidigital number, since it uses as much as digits as its factorization.

1220020012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610010006103.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1220020012202 its reverse (2022100200221), we get a palindrome (3242120212423).

The spelling of 1220020012202 in words is "one trillion, two hundred twenty billion, twenty million, twelve thousand, two hundred two".