1020221201222 has 8 divisors (see below), whose sum is σ = 1533129485016. Its totient is φ = 509178039552.

The previous prime is 1020221201201. The next prime is 1020221201227. The reversal of 1020221201222 is 2221021220201.

It is a happy number.

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

It is a super-2 number, since 2×1020221201222² (a number of 25 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 1020221201222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020221201227) 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, 466279163 + ... + 466281350.

It is an arithmetic number, because the mean of its divisors is an integer number (191641185627).

Almost surely, 2^{1020221201222} is an apocalyptic number.

1020221201222 is a deficient number, since it is larger than the sum of its proper divisors (512908283794).

1020221201222 is an equidigital number, since it uses as much as digits as its factorization.

1020221201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932561062.

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

Adding to 1020221201222 its reverse (2221021220201), we get a palindrome (3241242421423).

The spelling of 1020221201222 in words is "one trillion, twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-two".