20212101221102 has 16 divisors (see below), whose sum is σ = 34680901926240. Its totient is φ = 8654432707968.

The previous prime is 20212101221093. The next prime is 20212101221111. The reversal of 20212101221102 is 20112210121202.

It is an interprime number because it is at equal distance from previous prime (20212101221093) and next prime (20212101221111).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658016327 + ... + 658047042.

It is an arithmetic number, because the mean of its divisors is an integer number (2167556370390).

Almost surely, 2^{20212101221102} is an apocalyptic number.

20212101221102 is a deficient number, since it is larger than the sum of its proper divisors (14468800705138).

20212101221102 is a wasteful number, since it uses less digits than its factorization.

20212101221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316064475.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20212101221102 its reverse (20112210121202), we get a palindrome (40324311342304).

The spelling of 20212101221102 in words is "twenty trillion, two hundred twelve billion, one hundred one million, two hundred twenty-one thousand, one hundred two".