1220121202022 has 8 divisors (see below), whose sum is σ = 1909754924976. Its totient is φ = 583536227032.

The previous prime is 1220121202019. The next prime is 1220121202031. The reversal of 1220121202022 is 2202021210221.

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 2×1220121202022² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 13262186933 + ... + 13262187024.

It is an arithmetic number, because the mean of its divisors is an integer number (238719365622).

Almost surely, 2^{1220121202022} is an apocalyptic number.

1220121202022 is a deficient number, since it is larger than the sum of its proper divisors (689633722954).

1220121202022 is a wasteful number, since it uses less digits than its factorization.

1220121202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26524373982.

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

Adding to 1220121202022 its reverse (2202021210221), we get a palindrome (3422142412243).

The spelling of 1220121202022 in words is "one trillion, two hundred twenty billion, one hundred twenty-one million, two hundred two thousand, twenty-two".