1411211221 has 6 divisors (see below), whose sum is σ = 1641613110. Its totient is φ = 1209609576.

The previous prime is 1411211213. The next prime is 1411211227. The reversal of 1411211221 is 1221121141.

It can be written as a sum of positive squares in only one way, i.e., 1252098225 + 159112996 = 35385^2 + 12614^2 .

It is not a de Polignac number, because 1411211221 - 2³ = 1411211213 is a prime.

It is a super-2 number, since 2×1411211221² = 3983034220552621682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1411211195 and 1411211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1411211227) 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, 14400066 + ... + 14400163.

It is an arithmetic number, because the mean of its divisors is an integer number (273602185).

Almost surely, 2^1411211221 is an apocalyptic number.

It is an amenable number.

1411211221 is a deficient number, since it is larger than the sum of its proper divisors (230401889).

1411211221 is an equidigital number, since it uses as much as digits as its factorization.

1411211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28800243 (or 28800236 counting only the distinct ones).

The product of its digits is 32, while the sum is 16.

The square root of 1411211221 is about 37566.0913724066. The cubic root of 1411211221 is about 1121.6671655624.

Adding to 1411211221 its reverse (1221121141), we get a palindrome (2632332362).

The spelling of 1411211221 in words is "one billion, four hundred eleven million, two hundred eleven thousand, two hundred twenty-one".