20021012213010 has 32 divisors (see below), whose sum is σ = 50139578413440. Its totient is φ = 5106808912128.

The previous prime is 20021012213003. The next prime is 20021012213017. The reversal of 20021012213010 is 1031221012002.

It is an interprime number because it is at equal distance from previous prime (20021012213003) and next prime (20021012213017).

It is a super-3 number, since 3×20021012213010³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20021012213017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14507979175 + ... + 14507980554.

It is an arithmetic number, because the mean of its divisors is an integer number (1566861825420).

Almost surely, 2^{20021012213010} is an apocalyptic number.

20021012213010 is an abundant number, since it is smaller than the sum of its proper divisors (30118566200430).

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

20021012213010 is a wasteful number, since it uses less digits than its factorization.

20021012213010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29015959762.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20021012213010 its reverse (1031221012002), we get a palindrome (21052233225012).

The spelling of 20021012213010 in words is "twenty trillion, twenty-one billion, twelve million, two hundred thirteen thousand, ten".