212143400142020 has 24 divisors (see below), whose sum is σ = 445508210914368. Its totient is φ = 84856013272800.

The previous prime is 212143400141989. The next prime is 212143400142049. The reversal of 212143400142020 is 20241004341212.

It is a super-2 number, since 2×212143400142020² (a number of 29 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 82881866 + ... + 85403105.

It is an arithmetic number, because the mean of its divisors is an integer number (18562842121432).

Almost surely, 2^{212143400142020} is an apocalyptic number.

212143400142020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212143400142020 is an abundant number, since it is smaller than the sum of its proper divisors (233364810772348).

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

212143400142020 is a wasteful number, since it uses less digits than its factorization.

212143400142020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168348011 (or 168348009 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 212143400142020 its reverse (20241004341212), we get a palindrome (232384404483232).

The spelling of 212143400142020 in words is "two hundred twelve trillion, one hundred forty-three billion, four hundred million, one hundred forty-two thousand, twenty".