1220011220223 has 32 divisors (see below), whose sum is σ = 1831049395200. Its totient is φ = 802769643648.

The previous prime is 1220011220149. The next prime is 1220011220257. The reversal of 1220011220223 is 3220221100221.

1220011220223 is a `hidden beast` number, since 1 + 220 + 0 + 1 + 1 + 220 + 223 = 666.

It is not a de Polignac number, because 1220011220223 - 2⁹ = 1220011219711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220011220196 and 1220011220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220011222223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107365 + ... + 1565742.

It is an arithmetic number, because the mean of its divisors is an integer number (57220293600).

Almost surely, 2^{1220011220223} is an apocalyptic number.

1220011220223 is a deficient number, since it is larger than the sum of its proper divisors (611038174977).

1220011220223 is a wasteful number, since it uses less digits than its factorization.

1220011220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673468 (or 1673462 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1220011220223 its reverse (3220221100221), we get a palindrome (4440232320444).

The spelling of 1220011220223 in words is "one trillion, two hundred twenty billion, eleven million, two hundred twenty thousand, two hundred twenty-three".