1220211301 has 8 divisors (see below), whose sum is σ = 1258425344. Its totient is φ = 1182444480.

The previous prime is 1220211277. The next prime is 1220211313. The reversal of 1220211301 is 1031120221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220211301 - 2⁵ = 1220211269 is a prime.

It is a super-2 number, since 2×1220211301² = 2977831238176225202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220211001) 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, 106260 + ... + 117181.

It is an arithmetic number, because the mean of its divisors is an integer number (157303168).

Almost surely, 2^1220211301 is an apocalyptic number.

It is an amenable number.

1220211301 is a deficient number, since it is larger than the sum of its proper divisors (38214043).

1220211301 is a wasteful number, since it uses less digits than its factorization.

1220211301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223611.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1220211301 is about 34931.5230272028. The cubic root of 1220211301 is about 1068.5914154950.

Adding to 1220211301 its reverse (1031120221), we get a palindrome (2251331522).

It can be divided in two parts, 1220 and 211301, that added together give a square (212521 = 461²).

The spelling of 1220211301 in words is "one billion, two hundred twenty million, two hundred eleven thousand, three hundred one".