20211022002102 has 32 divisors (see below), whose sum is σ = 40476211356672. Its totient is φ = 6727985479584.

The previous prime is 20211022002097. The next prime is 20211022002107. The reversal of 20211022002102 is 20120022011202.

It is an interprime number because it is at equal distance from previous prime (20211022002097) and next prime (20211022002107).

It is a super-2 number, since 2×20211022002102² (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 (20211022002107) 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, 12663448 + ... + 14169860.

It is an arithmetic number, because the mean of its divisors is an integer number (1264881604896).

Almost surely, 2^{20211022002102} is an apocalyptic number.

20211022002102 is an abundant number, since it is smaller than the sum of its proper divisors (20265189354570).

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

20211022002102 is a wasteful number, since it uses less digits than its factorization.

20211022002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509412.

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

Adding to 20211022002102 its reverse (20120022011202), we get a palindrome (40331044013304).

It can be divided in two parts, 2021102 and 2002102, that added together give a palindrome (4023204).

The spelling of 20211022002102 in words is "twenty trillion, two hundred eleven billion, twenty-two million, two thousand, one hundred two".