212020240342 has 64 divisors (see below), whose sum is σ = 349388075520. Its totient is φ = 96139540224.

The previous prime is 212020240339. The next prime is 212020240363. The reversal of 212020240342 is 243042020212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45466303 + ... + 45470965.

It is an arithmetic number, because the mean of its divisors is an integer number (5459188680).

Almost surely, 2^212020240342 is an apocalyptic number.

212020240342 is a deficient number, since it is larger than the sum of its proper divisors (137367835178).

212020240342 is a wasteful number, since it uses less digits than its factorization.

212020240342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 212020240342 its reverse (243042020212), we get a palindrome (455062260554).

The spelling of 212020240342 in words is "two hundred twelve billion, twenty million, two hundred forty thousand, three hundred forty-two".