1220102110001 has 12 divisors (see below), whose sum is σ = 1301804366928. Its totient is φ = 1143272607552.

The previous prime is 1220102109997. The next prime is 1220102110033. The reversal of 1220102110001 is 1000112010221.

It is not a de Polignac number, because 1220102110001 - 2² = 1220102109997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220102110081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9233531 + ... + 9364736.

It is an arithmetic number, because the mean of its divisors is an integer number (108483697244).

Almost surely, 2^{1220102110001} is an apocalyptic number.

It is an amenable number.

1220102110001 is a deficient number, since it is larger than the sum of its proper divisors (81702256927).

1220102110001 is a wasteful number, since it uses less digits than its factorization.

1220102110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18598528 (or 18598511 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1220102110001 its reverse (1000112010221), we get a palindrome (2220214120222).

The spelling of 1220102110001 in words is "one trillion, two hundred twenty billion, one hundred two million, one hundred ten thousand, one".