2131212021230 has 16 divisors (see below), whose sum is σ = 3837647555280. Its totient is φ = 852159049152.

The previous prime is 2131212021229. The next prime is 2131212021233. The reversal of 2131212021230 is 321202121312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131212021233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40692440 + ... + 40744779.

It is an arithmetic number, because the mean of its divisors is an integer number (239852972205).

Almost surely, 2^{2131212021230} is an apocalyptic number.

2131212021230 is a deficient number, since it is larger than the sum of its proper divisors (1706435534050).

2131212021230 is a wasteful number, since it uses less digits than its factorization.

2131212021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81439843.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2131212021230 its reverse (321202121312), we get a palindrome (2452414142542).

The spelling of 2131212021230 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, twenty-one thousand, two hundred thirty".