1221101022022 has 8 divisors (see below), whose sum is σ = 2093316037776. Its totient is φ = 523329009432.

The previous prime is 1221101021981. The next prime is 1221101022047. The reversal of 1221101022022 is 2202201011221.

It is a happy number.

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

It is a super-3 number, since 3×1221101022022³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1221101021987 and 1221101022005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43610750773 + ... + 43610750800.

It is an arithmetic number, because the mean of its divisors is an integer number (261664504722).

Almost surely, 2^{1221101022022} is an apocalyptic number.

1221101022022 is a deficient number, since it is larger than the sum of its proper divisors (872215015754).

1221101022022 is an equidigital number, since it uses as much as digits as its factorization.

1221101022022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87221501582.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1221101022022 its reverse (2202201011221), we get a palindrome (3423302033243).

The spelling of 1221101022022 in words is "one trillion, two hundred twenty-one billion, one hundred one million, twenty-two thousand, twenty-two".