20011201214 has 4 divisors (see below), whose sum is σ = 30016801824. Its totient is φ = 10005600606.

The previous prime is 20011201213. The next prime is 20011201229. The reversal of 20011201214 is 41210211002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011201213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002800302 + ... + 5002800305.

It is an arithmetic number, because the mean of its divisors is an integer number (7504200456).

Almost surely, 2^20011201214 is an apocalyptic number.

20011201214 is a deficient number, since it is larger than the sum of its proper divisors (10005600610).

20011201214 is a wasteful number, since it uses less digits than its factorization.

20011201214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005600609.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20011201214 its reverse (41210211002), we get a palindrome (61221412216).

The spelling of 20011201214 in words is "twenty billion, eleven million, two hundred one thousand, two hundred fourteen".