212021212122102 has 16 divisors (see below), whose sum is σ = 424826236495152. Its totient is φ = 70543101998880.

The previous prime is 212021212122091. The next prime is 212021212122103. The reversal of 212021212122102 is 201221212120212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021212122103) 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, 32658840273 + ... + 32658846764.

It is an arithmetic number, because the mean of its divisors is an integer number (26551639780947).

Almost surely, 2^{212021212122102} is an apocalyptic number.

212021212122102 is an abundant number, since it is smaller than the sum of its proper divisors (212805024373050).

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

212021212122102 is a wasteful number, since it uses less digits than its factorization.

212021212122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65317687583.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212021212122102 its reverse (201221212120212), we get a palindrome (413242424242314).

The spelling of 212021212122102 in words is "two hundred twelve trillion, twenty-one billion, two hundred twelve million, one hundred twenty-two thousand, one hundred two".