1220203333011 has 16 divisors (see below), whose sum is σ = 1752107388416. Its totient is φ = 750885551136.

The previous prime is 1220203332991. The next prime is 1220203333031. The reversal of 1220203333011 is 1103333020221.

It is an interprime number because it is at equal distance from previous prime (1220203332991) and next prime (1220203333031).

It is not a de Polignac number, because 1220203333011 - 2¹⁵ = 1220203300243 is a prime.

It is a super-2 number, since 2×1220203333011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220203333031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5136486 + ... + 5368788.

It is an arithmetic number, because the mean of its divisors is an integer number (109506711776).

Almost surely, 2^{1220203333011} is an apocalyptic number.

1220203333011 is a deficient number, since it is larger than the sum of its proper divisors (531904055405).

1220203333011 is a wasteful number, since it uses less digits than its factorization.

1220203333011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367002.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1220203333011 its reverse (1103333020221), we get a palindrome (2323536353232).

The spelling of 1220203333011 in words is "one trillion, two hundred twenty billion, two hundred three million, three hundred thirty-three thousand, eleven".