1220202233101 has 4 divisors (see below), whose sum is σ = 1220205223552. Its totient is φ = 1220199242652.

The previous prime is 1220202233051. The next prime is 1220202233123. The reversal of 1220202233101 is 1013322020221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220202233101 - 2¹⁹ = 1220201708813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220202233171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763965 + ... + 1738978.

It is an arithmetic number, because the mean of its divisors is an integer number (305051305888).

Almost surely, 2^{1220202233101} is an apocalyptic number.

It is an amenable number.

1220202233101 is a deficient number, since it is larger than the sum of its proper divisors (2990451).

1220202233101 is an equidigital number, since it uses as much as digits as its factorization.

1220202233101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990450.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1220202233101 its reverse (1013322020221), we get a palindrome (2233524253322).

The spelling of 1220202233101 in words is "one trillion, two hundred twenty billion, two hundred two million, two hundred thirty-three thousand, one hundred one".