20212111424115 has 24 divisors (see below), whose sum is σ = 37729274659440. Its totient is φ = 9950577931584.

The previous prime is 20212111424107. The next prime is 20212111424119. The reversal of 20212111424115 is 51142411121202.

It is a happy number.

20212111424115 is a `hidden beast` number, since 2 + 0 + 2 + 12 + 111 + 424 + 115 = 666.

It is not a de Polignac number, because 20212111424115 - 2³ = 20212111424107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20212111424119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17275308325 + ... + 17275309494.

It is an arithmetic number, because the mean of its divisors is an integer number (1572053110810).

Almost surely, 2^{20212111424115} is an apocalyptic number.

20212111424115 is a deficient number, since it is larger than the sum of its proper divisors (17517163235325).

20212111424115 is a wasteful number, since it uses less digits than its factorization.

20212111424115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34550617843 (or 34550617840 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

Adding to 20212111424115 its reverse (51142411121202), we get a palindrome (71354522545317).

The spelling of 20212111424115 in words is "twenty trillion, two hundred twelve billion, one hundred eleven million, four hundred twenty-four thousand, one hundred fifteen".