212321102231030 has 64 divisors (see below), whose sum is σ = 417746849845248. Its totient is φ = 77220294053760.

The previous prime is 212321102230973. The next prime is 212321102231039. The reversal of 212321102231030 is 30132201123212.

It is a junction number, because it is equal to n+sod(n) for n = 212321102230987 and 212321102231005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212321102231039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132142175 + ... + 133739285.

It is an arithmetic number, because the mean of its divisors is an integer number (6527294528832).

Almost surely, 2^{212321102231030} is an apocalyptic number.

212321102231030 is a deficient number, since it is larger than the sum of its proper divisors (205425747614218).

212321102231030 is a wasteful number, since it uses less digits than its factorization.

212321102231030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612461.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212321102231030 its reverse (30132201123212), we get a palindrome (242453303354242).

The spelling of 212321102231030 in words is "two hundred twelve trillion, three hundred twenty-one billion, one hundred two million, two hundred thirty-one thousand, thirty".