20212093 has 8 divisors (see below), whose sum is σ = 22761216. Its totient is φ = 17781600.

The previous prime is 20212079. The next prime is 20212097. The reversal of 20212093 is 39021202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20212093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29296 + ... + 29977.

It is an arithmetic number, because the mean of its divisors is an integer number (2845152).

Almost surely, 2^20212093 is an apocalyptic number.

It is an amenable number.

20212093 is a deficient number, since it is larger than the sum of its proper divisors (2549123).

20212093 is a wasteful number, since it uses less digits than its factorization.

20212093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59315.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 20212093 is about 4495.7861381520. The cubic root of 20212093 is about 272.3979046877.

Adding to 20212093 its reverse (39021202), we get a palindrome (59233295).

It can be divided in two parts, 2021 and 2093, that added together give a palindrome (4114).

The spelling of 20212093 in words is "twenty million, two hundred twelve thousand, ninety-three".