20000120121210 has 16 divisors (see below), whose sum is σ = 48000288290976. Its totient is φ = 5333365365648.

The previous prime is 20000120121133. The next prime is 20000120121239. The reversal of 20000120121210 is 1212102100002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333335335324 + ... + 333335335383.

It is an arithmetic number, because the mean of its divisors is an integer number (3000018018186).

Almost surely, 2^{20000120121210} is an apocalyptic number.

20000120121210 is an abundant number, since it is smaller than the sum of its proper divisors (28000168169766).

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

20000120121210 is a wasteful number, since it uses less digits than its factorization.

20000120121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666670670717.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20000120121210 its reverse (1212102100002), we get a palindrome (21212222221212).

The spelling of 20000120121210 in words is "twenty trillion, one hundred twenty million, one hundred twenty-one thousand, two hundred ten".