1222122201020 has 48 divisors (see below), whose sum is σ = 2933238002688. Its totient is φ = 418992651840.

The previous prime is 1222122200993. The next prime is 1222122201023. The reversal of 1222122201020 is 201022212221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222122201020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222122201023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2780525 + ... + 3189915.

It is an arithmetic number, because the mean of its divisors is an integer number (61109125056).

Almost surely, 2^{1222122201020} is an apocalyptic number.

1222122201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222122201020 is an abundant number, since it is smaller than the sum of its proper divisors (1711115801668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222122201020 is a wasteful number, since it uses less digits than its factorization.

1222122201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430730 (or 430728 counting only the distinct ones).

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

Adding to 1222122201020 its reverse (201022212221), we get a palindrome (1423144413241).

It can be divided in two parts, 122212 and 2201020, that added together give a palindrome (2323232).

The spelling of 1222122201020 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred one thousand, twenty".