20212102020102 has 32 divisors (see below), whose sum is σ = 40445472662784. Its totient is φ = 6733823172000.

The previous prime is 20212102020049. The next prime is 20212102020107. The reversal of 20212102020102 is 20102020121202.

It is a super-2 number, since 2×20212102020102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212102020107) 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, 146473063 + ... + 146610989.

It is an arithmetic number, because the mean of its divisors is an integer number (1263921020712).

Almost surely, 2^{20212102020102} is an apocalyptic number.

20212102020102 is an abundant number, since it is smaller than the sum of its proper divisors (20233370642682).

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

20212102020102 is a wasteful number, since it uses less digits than its factorization.

20212102020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150604.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20212102020102 its reverse (20102020121202), we get a palindrome (40314122141304).

The spelling of 20212102020102 in words is "twenty trillion, two hundred twelve billion, one hundred two million, twenty thousand, one hundred two".