1220022121022 has 16 divisors (see below), whose sum is σ = 1844321990544. Its totient is φ = 605249736000.

The previous prime is 1220022121009. The next prime is 1220022121069. The reversal of 1220022121022 is 2201212200221.

It is a happy number.

It is a super-2 number, since 2×1220022121022² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125122 + ... + 1925082.

It is an arithmetic number, because the mean of its divisors is an integer number (115270124409).

Almost surely, 2^{1220022121022} is an apocalyptic number.

1220022121022 is a deficient number, since it is larger than the sum of its proper divisors (624299869522).

1220022121022 is a wasteful number, since it uses less digits than its factorization.

1220022121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805915.

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

Adding to 1220022121022 its reverse (2201212200221), we get a palindrome (3421234321243).

The spelling of 1220022121022 in words is "one trillion, two hundred twenty billion, twenty-two million, one hundred twenty-one thousand, twenty-two".