1220001001007 has 4 divisors (see below), whose sum is σ = 1224861563016. Its totient is φ = 1215140439000.

The previous prime is 1220001000989. The next prime is 1220001001027. The reversal of 1220001001007 is 7001001000221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220001001007 - 2²⁸ = 1219732565551 is a prime.

It is a super-3 number, since 3×1220001001007³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220001000982 and 1220001001000.

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, 2430280628 + ... + 2430281129.

It is an arithmetic number, because the mean of its divisors is an integer number (306215390754).

Almost surely, 2^{1220001001007} is an apocalyptic number.

1220001001007 is a deficient number, since it is larger than the sum of its proper divisors (4860562009).

1220001001007 is an equidigital number, since it uses as much as digits as its factorization.

1220001001007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4860562008.

The product of its (nonzero) digits is 28, while the sum is 14.

Adding to 1220001001007 its reverse (7001001000221), we get a palindrome (8221002001228).

The spelling of 1220001001007 in words is "one trillion, two hundred twenty billion, one million, one thousand, seven".