2135243221011 has 12 divisors (see below), whose sum is σ = 3183731828160. Its totient is φ = 1377576271440.

The previous prime is 2135243221003. The next prime is 2135243221039. The reversal of 2135243221011 is 1101223425312.

It is a happy number.

2135243221011 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 2 + 432 + 210 + 11 = 666.

It is not a de Polignac number, because 2135243221011 - 2³ = 2135243221003 is a prime.

It is a super-2 number, since 2×2135243221011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2135243221051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3826600476 + ... + 3826601033.

It is an arithmetic number, because the mean of its divisors is an integer number (265310985680).

Almost surely, 2^{2135243221011} is an apocalyptic number.

2135243221011 is a deficient number, since it is larger than the sum of its proper divisors (1048488607149).

2135243221011 is a wasteful number, since it uses less digits than its factorization.

2135243221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7653201546 (or 7653201543 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 2135243221011 its reverse (1101223425312), we get a palindrome (3236466646323).

The spelling of 2135243221011 in words is "two trillion, one hundred thirty-five billion, two hundred forty-three million, two hundred twenty-one thousand, eleven".