20201021201210 has 32 divisors (see below), whose sum is σ = 36510547824000. Its totient is φ = 8047384171840.

The previous prime is 20201021201111. The next prime is 20201021201219. The reversal of 20201021201210 is 1210212010202.

It is a super-2 number, since 2×20201021201210² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20201021201219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5869115 + ... + 8651505.

It is an arithmetic number, because the mean of its divisors is an integer number (1140954619500).

Almost surely, 2^{20201021201210} is an apocalyptic number.

20201021201210 is a deficient number, since it is larger than the sum of its proper divisors (16309526622790).

20201021201210 is a wasteful number, since it uses less digits than its factorization.

20201021201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785366.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20201021201210 its reverse (1210212010202), we get a palindrome (21411233211412).

The spelling of 20201021201210 in words is "twenty trillion, two hundred one billion, twenty-one million, two hundred one thousand, two hundred ten".