1211422441013 has 16 divisors (see below), whose sum is σ = 1288905653376. Its totient is φ = 1134631895040.

The previous prime is 1211422440959. The next prime is 1211422441027. The reversal of 1211422441013 is 3101442241121.

It is a cyclic number.

It is not a de Polignac number, because 1211422441013 - 2¹⁰ = 1211422439989 is a prime.

It is a super-3 number, since 3×1211422441013³ (a number of 37 digits) contains 333 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 (1211422441043) 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, 52333520 + ... + 52356662.

It is an arithmetic number, because the mean of its divisors is an integer number (80556603336).

Almost surely, 2^{1211422441013} is an apocalyptic number.

It is an amenable number.

1211422441013 is a deficient number, since it is larger than the sum of its proper divisors (77483212363).

1211422441013 is a wasteful number, since it uses less digits than its factorization.

1211422441013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37964.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 1211422441013 its reverse (3101442241121), we get a palindrome (4312864682134).

The spelling of 1211422441013 in words is "one trillion, two hundred eleven billion, four hundred twenty-two million, four hundred forty-one thousand, thirteen".