1220022331203 has 32 divisors (see below), whose sum is σ = 1801930245696. Its totient is φ = 729372307968.

The previous prime is 1220022331189. The next prime is 1220022331247. The reversal of 1220022331203 is 3021332200221.

It is a happy number.

It is not a de Polignac number, because 1220022331203 - 2²² = 1220018136899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220022331203.

It is not an unprimeable number, because it can be changed into a prime (1220022331303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294901 + ... + 1589657.

It is an arithmetic number, because the mean of its divisors is an integer number (56310320178).

Almost surely, 2^{1220022331203} is an apocalyptic number.

1220022331203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1220022331203 is a deficient number, since it is larger than the sum of its proper divisors (581907914493).

1220022331203 is a wasteful number, since it uses less digits than its factorization.

1220022331203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295463.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1220022331203 its reverse (3021332200221), we get a palindrome (4241354531424).

The spelling of 1220022331203 in words is "one trillion, two hundred twenty billion, twenty-two million, three hundred thirty-one thousand, two hundred three".