20212930274 has 4 divisors (see below), whose sum is σ = 30319395414. Its totient is φ = 10106465136.

The previous prime is 20212930273. The next prime is 20212930307. The reversal of 20212930274 is 47203921202.

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

It can be written as a sum of positive squares in only one way, i.e., 19826611249 + 386319025 = 140807^2 + 19655^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20212930274.

It is not an unprimeable number, because it can be changed into a prime (20212930273) 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, 5053232567 + ... + 5053232570.

Almost surely, 2^20212930274 is an apocalyptic number.

20212930274 is a deficient number, since it is larger than the sum of its proper divisors (10106465140).

20212930274 is a wasteful number, since it uses less digits than its factorization.

20212930274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106465139.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 20212930274 in words is "twenty billion, two hundred twelve million, nine hundred thirty thousand, two hundred seventy-four".