1220012201104 has 40 divisors (see below), whose sum is σ = 2380832351352. Its totient is φ = 605613926400.

The previous prime is 1220012201071. The next prime is 1220012201117. The reversal of 1220012201104 is 4011022100221.

It can be written as a sum of positive squares in 4 ways, for example, as 404877690000 + 815134511104 = 636300^2 + 902848^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 1625992 + ... + 2254744.

Almost surely, 2^{1220012201104} is an apocalyptic number.

It is an amenable number.

1220012201104 is a deficient number, since it is larger than the sum of its proper divisors (1160820150248).

1220012201104 is a wasteful number, since it uses less digits than its factorization.

1220012201104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629635 (or 629629 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1220012201104 its reverse (4011022100221), we get a palindrome (5231034301325).

The spelling of 1220012201104 in words is "one trillion, two hundred twenty billion, twelve million, two hundred one thousand, one hundred four".