1211460252211 has 4 divisors (see below), whose sum is σ = 1321593002424. Its totient is φ = 1101327502000.

The previous prime is 1211460252187. The next prime is 1211460252221. The reversal of 1211460252211 is 1122520641121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1211460252211 - 2¹⁵ = 1211460219443 is a prime.

It is a super-3 number, since 3×1211460252211³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1211460252211.

It is not an unprimeable number, because it can be changed into a prime (1211460252221) 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, 55066375090 + ... + 55066375111.

It is an arithmetic number, because the mean of its divisors is an integer number (330398250606).

Almost surely, 2^{1211460252211} is an apocalyptic number.

1211460252211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1211460252211 is a deficient number, since it is larger than the sum of its proper divisors (110132750213).

1211460252211 is a wasteful number, since it uses less digits than its factorization.

1211460252211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110132750212.

The product of its (nonzero) digits is 1920, while the sum is 28.

Adding to 1211460252211 its reverse (1122520641121), we get a palindrome (2333980893332).

The spelling of 1211460252211 in words is "one trillion, two hundred eleven billion, four hundred sixty million, two hundred fifty-two thousand, two hundred eleven".