212001221012130 has 48 divisors (see below), whose sum is σ = 601312554146304. Its totient is φ = 51394235396640.

The previous prime is 212001221012107. The next prime is 212001221012131. The reversal of 212001221012130 is 31210122100212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (212001221012131) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 107071322754 + ... + 107071324733.

It is an arithmetic number, because the mean of its divisors is an integer number (12527344878048).

Almost surely, 2^{212001221012130} is an apocalyptic number.

212001221012130 is an abundant number, since it is smaller than the sum of its proper divisors (389311333134174).

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

212001221012130 is a wasteful number, since it uses less digits than its factorization.

212001221012130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214142647511 (or 214142647508 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 212001221012130 its reverse (31210122100212), we get a palindrome (243211343112342).

The spelling of 212001221012130 in words is "two hundred twelve trillion, one billion, two hundred twenty-one million, twelve thousand, one hundred thirty".