2011243214421 has 48 divisors (see below), whose sum is σ = 3473586340224. Its totient is φ = 1139111092224.

The previous prime is 2011243214401. The next prime is 2011243214429. The reversal of 2011243214421 is 1244123421102.

2011243214421 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 24 + 3 + 214 + 421 = 666.

It is not a de Polignac number, because 2011243214421 - 2⁷ = 2011243214293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011243214429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5039596 + ... + 5424021.

It is an arithmetic number, because the mean of its divisors is an integer number (72366382088).

Almost surely, 2^{2011243214421} is an apocalyptic number.

2011243214421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2011243214421 is a deficient number, since it is larger than the sum of its proper divisors (1462343125803).

2011243214421 is a wasteful number, since it uses less digits than its factorization.

2011243214421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10463752 (or 10463740 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 2011243214421 its reverse (1244123421102), we get a palindrome (3255366635523).

The spelling of 2011243214421 in words is "two trillion, eleven billion, two hundred forty-three million, two hundred fourteen thousand, four hundred twenty-one".