20202221020102 has 32 divisors (see below), whose sum is σ = 34228955181600. Its totient is φ = 8858183443200.

The previous prime is 20202221020081. The next prime is 20202221020109. The reversal of 20202221020102 is 20102012220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202221020109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13568799 + ... + 14983882.

It is an arithmetic number, because the mean of its divisors is an integer number (1069654849425).

Almost surely, 2^{20202221020102} is an apocalyptic number.

20202221020102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20202221020102 is a deficient number, since it is larger than the sum of its proper divisors (14026734161498).

20202221020102 is a wasteful number, since it uses less digits than its factorization.

20202221020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28553832.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20202221020102 its reverse (20102012220202), we get a palindrome (40304233240304).

The spelling of 20202221020102 in words is "twenty trillion, two hundred two billion, two hundred twenty-one million, twenty thousand, one hundred two".