212120020121202 has 64 divisors (see below), whose sum is σ = 477631684608000. Its totient is φ = 69769670512464.

The previous prime is 212120020121183. The next prime is 212120020121291. The reversal of 212120020121202 is 202121020021212.

It is a happy number.

212120020121202 is a `hidden beast` number, since 2 + 121 + 200 + 20 + 121 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7855552 + ... + 22044267.

It is an arithmetic number, because the mean of its divisors is an integer number (7462995072000).

Almost surely, 2^{212120020121202} is an apocalyptic number.

212120020121202 is an abundant number, since it is smaller than the sum of its proper divisors (265511664486798).

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

212120020121202 is a wasteful number, since it uses less digits than its factorization.

212120020121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29901572 (or 29901566 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212120020121202 its reverse (202121020021212), we get a palindrome (414241040142414).

The spelling of 212120020121202 in words is "two hundred twelve trillion, one hundred twenty billion, twenty million, one hundred twenty-one thousand, two hundred two".