20212121014 has 4 divisors (see below), whose sum is σ = 30318181524. Its totient is φ = 10106060506.

The previous prime is 20212121009. The next prime is 20212121021. The reversal of 20212121014 is 41012121202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053030252 + ... + 5053030255.

It is an arithmetic number, because the mean of its divisors is an integer number (7579545381).

Almost surely, 2^20212121014 is an apocalyptic number.

20212121014 is a deficient number, since it is larger than the sum of its proper divisors (10106060510).

20212121014 is a wasteful number, since it uses less digits than its factorization.

20212121014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106060509.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20212121014 its reverse (41012121202), we get a palindrome (61224242216).

The spelling of 20212121014 in words is "twenty billion, two hundred twelve million, one hundred twenty-one thousand, fourteen".