212100001020022 has 16 divisors (see below), whose sum is σ = 321284449774080. Its totient is φ = 105005476821672.

The previous prime is 212100001020007. The next prime is 212100001020023. The reversal of 212100001020022 is 220020100001212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212100001019984 and 212100001020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100001020023) 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, 71643822 + ... + 74545537.

It is an arithmetic number, because the mean of its divisors is an integer number (20080278110880).

Almost surely, 2^{212100001020022} is an apocalyptic number.

212100001020022 is a deficient number, since it is larger than the sum of its proper divisors (109184448754058).

212100001020022 is a wasteful number, since it uses less digits than its factorization.

212100001020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146196507.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212100001020022 its reverse (220020100001212), we get a palindrome (432120101021234).

The spelling of 212100001020022 in words is "two hundred twelve trillion, one hundred billion, one million, twenty thousand, twenty-two".