212140131221210 has 32 divisors (see below), whose sum is σ = 381997592092800. Its totient is φ = 84823752761280.

The previous prime is 212140131221173. The next prime is 212140131221233. The reversal of 212140131221210 is 12122131041212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1493463371 + ... + 1493605409.

It is an arithmetic number, because the mean of its divisors is an integer number (11937424752900).

Almost surely, 2^{212140131221210} is an apocalyptic number.

212140131221210 is a deficient number, since it is larger than the sum of its proper divisors (169857460871590).

212140131221210 is a wasteful number, since it uses less digits than its factorization.

212140131221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197846.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 212140131221210 its reverse (12122131041212), we get a palindrome (224262262262422).

The spelling of 212140131221210 in words is "two hundred twelve trillion, one hundred forty billion, one hundred thirty-one million, two hundred twenty-one thousand, two hundred ten".