20115211214 has 32 divisors (see below), whose sum is σ = 35088754176. Its totient is φ = 8470254240.

The previous prime is 20115211157. The next prime is 20115211241. The reversal of 20115211214 is 41211251102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256709 + ... + 325775.

It is an arithmetic number, because the mean of its divisors is an integer number (1096523568).

Almost surely, 2^20115211214 is an apocalyptic number.

20115211214 is a deficient number, since it is larger than the sum of its proper divisors (14973542962).

20115211214 is a wasteful number, since it uses less digits than its factorization.

20115211214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69440.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 20115211214 its reverse (41211251102), we get a palindrome (61326462316).

The spelling of 20115211214 in words is "twenty billion, one hundred fifteen million, two hundred eleven thousand, two hundred fourteen".