1220000001102 has 48 divisors (see below), whose sum is σ = 2744169481680. Its totient is φ = 401766946128.

The previous prime is 1220000001091. The next prime is 1220000001169. The reversal of 1220000001102 is 2011000000221.

It is a super-3 number, since 3×1220000001102³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1267753 + ... + 2011764.

It is an arithmetic number, because the mean of its divisors is an integer number (57170197535).

Almost surely, 2^{1220000001102} is an apocalyptic number.

1220000001102 is an abundant number, since it is smaller than the sum of its proper divisors (1524169480578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220000001102 is an equidigital number, since it uses as much as digits as its factorization.

1220000001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279694 (or 3279605 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1220000001102 its reverse (2011000000221), we get a palindrome (3231000001323).

The spelling of 1220000001102 in words is "one trillion, two hundred twenty billion, one thousand, one hundred two".