20213001231210 has 64 divisors (see below), whose sum is σ = 53904110463360. Its totient is φ = 5389856277120.

The previous prime is 20213001231193. The next prime is 20213001231221. The reversal of 20213001231210 is 1213210031202.

20213001231210 is a `hidden beast` number, since 20 + 21 + 300 + 1 + 2 + 312 + 10 = 666.

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

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 3356854 + ... + 7189886.

It is an arithmetic number, because the mean of its divisors is an integer number (842251725990).

Almost surely, 2^{20213001231210} is an apocalyptic number.

20213001231210 is an abundant number, since it is smaller than the sum of its proper divisors (33691109232150).

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

20213001231210 is a wasteful number, since it uses less digits than its factorization.

20213001231210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852580 (or 3852574 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20213001231210 its reverse (1213210031202), we get a palindrome (21426211262412).

The spelling of 20213001231210 in words is "twenty trillion, two hundred thirteen billion, one million, two hundred thirty-one thousand, two hundred ten".