1220201231103 has 8 divisors (see below), whose sum is σ = 1807705527600. Its totient is φ = 813467487384.

The previous prime is 1220201231101. The next prime is 1220201231107. The reversal of 1220201231103 is 3011321020221.

1220201231103 is a `hidden beast` number, since 1 + 220 + 201 + 231 + 10 + 3 = 666.

It is not a de Polignac number, because 1220201231103 - 2¹ = 1220201231101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220201231101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22596319068 + ... + 22596319121.

It is an arithmetic number, because the mean of its divisors is an integer number (225963190950).

Almost surely, 2^{1220201231103} is an apocalyptic number.

1220201231103 is a deficient number, since it is larger than the sum of its proper divisors (587504296497).

1220201231103 is an equidigital number, since it uses as much as digits as its factorization.

1220201231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45192638198 (or 45192638192 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1220201231103 its reverse (3011321020221), we get a palindrome (4231522251324).

The spelling of 1220201231103 in words is "one trillion, two hundred twenty billion, two hundred one million, two hundred thirty-one thousand, one hundred three".