212001122021122 has 16 divisors (see below), whose sum is σ = 371882366868672. Its totient is φ = 88744655729520.

The previous prime is 212001122021111. The next prime is 212001122021141. The reversal of 212001122021122 is 221120221100212.

It is a self number, because there is not a number n which added to its sum of digits gives 212001122021122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176080665529 + ... + 176080666732.

It is an arithmetic number, because the mean of its divisors is an integer number (23242647929292).

Almost surely, 2^{212001122021122} is an apocalyptic number.

212001122021122 is a deficient number, since it is larger than the sum of its proper divisors (159881244847550).

212001122021122 is a wasteful number, since it uses less digits than its factorization.

212001122021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352161332313.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212001122021122 its reverse (221120221100212), we get a palindrome (433121343121334).

The spelling of 212001122021122 in words is "two hundred twelve trillion, one billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty-two".