212122022211110 has 256 divisors, whose sum is σ = 439968827105280. Its totient is φ = 72956768501760.

The previous prime is 212122022211091. The next prime is 212122022211119. The reversal of 212122022211110 is 11112220221212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122022211119) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6413735534 + ... + 6413768606.

It is an arithmetic number, because the mean of its divisors is an integer number (1718628230880).

Almost surely, 2^{212122022211110} is an apocalyptic number.

212122022211110 is an abundant number, since it is smaller than the sum of its proper divisors (227846804894170).

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

212122022211110 is a wasteful number, since it uses less digits than its factorization.

212122022211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33543.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212122022211110 its reverse (11112220221212), we get a palindrome (223234242432322).

The spelling of 212122022211110 in words is "two hundred twelve trillion, one hundred twenty-two billion, twenty-two million, two hundred eleven thousand, one hundred ten".