1220021002203 has 8 divisors (see below), whose sum is σ = 1626728908368. Its totient is φ = 813330215424.

The previous prime is 1220021002183. The next prime is 1220021002217. The reversal of 1220021002203 is 3022001200221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220021002203 - 2¹² = 1220020998107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220021002283) 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, 4112626 + ... + 4399287.

It is an arithmetic number, because the mean of its divisors is an integer number (203341113546).

Almost surely, 2^{1220021002203} is an apocalyptic number.

1220021002203 is a deficient number, since it is larger than the sum of its proper divisors (406707906165).

1220021002203 is an equidigital number, since it uses as much as digits as its factorization.

1220021002203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8559693.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1220021002203 its reverse (3022001200221), we get a palindrome (4242022202424).

The spelling of 1220021002203 in words is "one trillion, two hundred twenty billion, twenty-one million, two thousand, two hundred three".