20121252214 has 32 divisors (see below), whose sum is σ = 35309108736. Its totient is φ = 8419662720.

The previous prime is 20121252211. The next prime is 20121252269. The reversal of 20121252214 is 41225212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121252211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2259679 + ... + 2268565.

It is an arithmetic number, because the mean of its divisors is an integer number (1103409648).

Almost surely, 2^20121252214 is an apocalyptic number.

20121252214 is a deficient number, since it is larger than the sum of its proper divisors (15187856522).

20121252214 is a wasteful number, since it uses less digits than its factorization.

20121252214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12700.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 20121252214 its reverse (41225212102), we get a palindrome (61346464316).

The spelling of 20121252214 in words is "twenty billion, one hundred twenty-one million, two hundred fifty-two thousand, two hundred fourteen".