1211132024421 has 32 divisors (see below), whose sum is σ = 1870775239680. Its totient is φ = 689232902400.

The previous prime is 1211132024387. The next prime is 1211132024449. The reversal of 1211132024421 is 1244202311121.

It is not a de Polignac number, because 1211132024421 - 2¹³ = 1211132016229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211132024391 and 1211132024400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211132024521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8476185 + ... + 8617886.

It is an arithmetic number, because the mean of its divisors is an integer number (58461726240).

Almost surely, 2^{1211132024421} is an apocalyptic number.

1211132024421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1211132024421 is a deficient number, since it is larger than the sum of its proper divisors (659643215259).

1211132024421 is a wasteful number, since it uses less digits than its factorization.

1211132024421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17094217.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1211132024421 its reverse (1244202311121), we get a palindrome (2455334335542).

The spelling of 1211132024421 in words is "one trillion, two hundred eleven billion, one hundred thirty-two million, twenty-four thousand, four hundred twenty-one".