20212021201210 has 32 divisors (see below), whose sum is σ = 37604589686784. Its totient is φ = 7813726896000.

The previous prime is 20212021201159. The next prime is 20212021201213. The reversal of 20212021201210 is 1210212021202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20212021201213) 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, 42602506 + ... + 43074325.

It is an arithmetic number, because the mean of its divisors is an integer number (1175143427712).

Almost surely, 2^{20212021201210} is an apocalyptic number.

20212021201210 is a deficient number, since it is larger than the sum of its proper divisors (17392568485574).

20212021201210 is a wasteful number, since it uses less digits than its factorization.

20212021201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85677630.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20212021201210 its reverse (1210212021202), we get a palindrome (21422233222412).

The spelling of 20212021201210 in words is "twenty trillion, two hundred twelve billion, twenty-one million, two hundred one thousand, two hundred ten".