212122112010 has 16 divisors (see below), whose sum is σ = 509093068896. Its totient is φ = 56565896528.

The previous prime is 212122111979. The next prime is 212122112011. The reversal of 212122112010 is 10211221212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212122112011) 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, 3535368504 + ... + 3535368563.

It is an arithmetic number, because the mean of its divisors is an integer number (31818316806).

Almost surely, 2^212122112010 is an apocalyptic number.

212122112010 is an abundant number, since it is smaller than the sum of its proper divisors (296970956886).

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

212122112010 is a wasteful number, since it uses less digits than its factorization.

212122112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070737077.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212122112010 its reverse (10211221212), we get a palindrome (222333333222).

The spelling of 212122112010 in words is "two hundred twelve billion, one hundred twenty-two million, one hundred twelve thousand, ten".