1220001001022 has 8 divisors (see below), whose sum is σ = 1937648648736. Its totient is φ = 574118118112.

The previous prime is 1220001000989. The next prime is 1220001001027. The reversal of 1220001001022 is 2201001000221.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1220001000994 and 1220001001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220001001027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17941191158 + ... + 17941191225.

It is an arithmetic number, because the mean of its divisors is an integer number (242206081092).

Almost surely, 2^{1220001001022} is an apocalyptic number.

1220001001022 is a deficient number, since it is larger than the sum of its proper divisors (717647647714).

1220001001022 is a wasteful number, since it uses less digits than its factorization.

1220001001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35882382402.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1220001001022 its reverse (2201001000221), we get a palindrome (3421002001243).

The spelling of 1220001001022 in words is "one trillion, two hundred twenty billion, one million, one thousand, twenty-two".