20212331202234 has 40 divisors (see below), whose sum is σ = 46514664111828. Its totient is φ = 6555350658240.

The previous prime is 20212331202187. The next prime is 20212331202263. The reversal of 20212331202234 is 43220213321202.

20212331202234 is a `hidden beast` number, since 2 + 0 + 2 + 123 + 312 + 0 + 223 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19470571027209 + 741760175025 = 4412547^2 + 861255^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20212331202198 and 20212331202207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1686040987 + ... + 1686052974.

Almost surely, 2^{20212331202234} is an apocalyptic number.

20212331202234 is an abundant number, since it is smaller than the sum of its proper divisors (26302332909594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20212331202234 is a wasteful number, since it uses less digits than its factorization.

20212331202234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372094012 (or 3372094003 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20212331202234 its reverse (43220213321202), we get a palindrome (63432544523436).

The spelling of 20212331202234 in words is "twenty trillion, two hundred twelve billion, three hundred thirty-one million, two hundred two thousand, two hundred thirty-four".