1220064211108 has 6 divisors (see below), whose sum is σ = 2135112369446. Its totient is φ = 610032105552.

The previous prime is 1220064211099. The next prime is 1220064211111. The reversal of 1220064211108 is 8011124600221.

It can be written as a sum of positive squares in only one way, i.e., 1199655802944 + 20408408164 = 1095288^2 + 142858^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152508026385 + ... + 152508026392.

Almost surely, 2^{1220064211108} is an apocalyptic number.

It is an amenable number.

1220064211108 is a deficient number, since it is larger than the sum of its proper divisors (915048158338).

1220064211108 is a wasteful number, since it uses less digits than its factorization.

1220064211108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305016052781 (or 305016052779 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 1220064211108 its reverse (8011124600221), we get a palindrome (9231188811329).

The spelling of 1220064211108 in words is "one trillion, two hundred twenty billion, sixty-four million, two hundred eleven thousand, one hundred eight".