1220010201101 has 6 divisors (see below), whose sum is σ = 1275360380910. Its totient is φ = 1166966278808.

The previous prime is 1220010201073. The next prime is 1220010201103. The reversal of 1220010201101 is 1011020100221.

It can be written as a sum of positive squares in only one way, i.e., 1216937716201 + 3072484900 = 1103149^2 + 55430^2 .

It is not a de Polignac number, because 1220010201101 - 2⁶ = 1220010201037 is a prime.

It is a super-2 number, since 2×1220010201101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220010201103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1153128206 + ... + 1153129263.

It is an arithmetic number, because the mean of its divisors is an integer number (212560063485).

Almost surely, 2^{1220010201101} is an apocalyptic number.

It is an amenable number.

1220010201101 is a deficient number, since it is larger than the sum of its proper divisors (55350179809).

1220010201101 is an equidigital number, since it uses as much as digits as its factorization.

1220010201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306257515 (or 2306257492 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1220010201101 its reverse (1011020100221), we get a palindrome (2231030301322).

The spelling of 1220010201101 in words is "one trillion, two hundred twenty billion, ten million, two hundred one thousand, one hundred one".