20211274 has 8 divisors (see below), whose sum is σ = 30444480. Its totient is φ = 10063116.

The previous prime is 20211263. The next prime is 20211377. The reversal of 20211274 is 47211202.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20664 + ... + 21619.

It is an arithmetic number, because the mean of its divisors is an integer number (3805560).

Almost surely, 2^20211274 is an apocalyptic number.

20211274 is a deficient number, since it is larger than the sum of its proper divisors (10233206).

20211274 is a wasteful number, since it uses less digits than its factorization.

20211274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42524.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20211274 is about 4495.6950519358. The cubic root of 20211274 is about 272.3942254234.

Adding to 20211274 its reverse (47211202), we get a palindrome (67422476).

It can be divided in two parts, 202 and 11274, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 20211274 in words is "twenty million, two hundred eleven thousand, two hundred seventy-four".