212351511120342 has 64 divisors (see below), whose sum is σ = 468887770517760. Its totient is φ = 63578874153600.

The previous prime is 212351511120283. The next prime is 212351511120361. The reversal of 212351511120342 is 243021115153212.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 51645973 + ... + 55605840.

It is an arithmetic number, because the mean of its divisors is an integer number (7326371414340).

Almost surely, 2^{212351511120342} is an apocalyptic number.

212351511120342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212351511120342 is an abundant number, since it is smaller than the sum of its proper divisors (256536259397418).

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

212351511120342 is a wasteful number, since it uses less digits than its factorization.

212351511120342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107252189.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 212351511120342 its reverse (243021115153212), we get a palindrome (455372626273554).

The spelling of 212351511120342 in words is "two hundred twelve trillion, three hundred fifty-one billion, five hundred eleven million, one hundred twenty thousand, three hundred forty-two".