20212046 has 4 divisors (see below), whose sum is σ = 30318072. Its totient is φ = 10106022.

The previous prime is 20212033. The next prime is 20212063. The reversal of 20212046 is 64021202.

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

It is a super-2 number, since 2×20212046² = 817053607012232, which contains 22 as substring.

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, 5053010 + ... + 5053013.

It is an arithmetic number, because the mean of its divisors is an integer number (7579518).

Almost surely, 2^20212046 is an apocalyptic number.

20212046 is a deficient number, since it is larger than the sum of its proper divisors (10106026).

20212046 is a wasteful number, since it uses less digits than its factorization.

20212046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106025.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20212046 is about 4495.7809110320. The cubic root of 20212046 is about 272.3976935482.

Adding to 20212046 its reverse (64021202), we get a palindrome (84233248).

The spelling of 20212046 in words is "twenty million, two hundred twelve thousand, forty-six".