1222220120201 has 4 divisors (see below), whose sum is σ = 1223093760000. Its totient is φ = 1221346480404.

The previous prime is 1222220120189. The next prime is 1222220120227. The reversal of 1222220120201 is 1020210222221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1222220120201 - 2²² = 1222215925897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222220120201.

It is not an unprimeable number, because it can be changed into a prime (1222220120291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436817801 + ... + 436820598.

It is an arithmetic number, because the mean of its divisors is an integer number (305773440000).

Almost surely, 2^{1222220120201} is an apocalyptic number.

It is an amenable number.

1222220120201 is a deficient number, since it is larger than the sum of its proper divisors (873639799).

1222220120201 is an equidigital number, since it uses as much as digits as its factorization.

1222220120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873639798.

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

Adding to 1222220120201 its reverse (1020210222221), we get a palindrome (2242430342422).

The spelling of 1222220120201 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twenty thousand, two hundred one".