20110100221212 has 48 divisors (see below), whose sum is σ = 49697109665280. Its totient is φ = 6307358015232.

The previous prime is 20110100221201. The next prime is 20110100221261. The reversal of 20110100221212 is 21212200101102.

It is a super-2 number, since 2×20110100221212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20110100221191 and 20110100221200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12464662 + ... + 13985277.

It is an arithmetic number, because the mean of its divisors is an integer number (1035356451360).

Almost surely, 2^{20110100221212} is an apocalyptic number.

It is an amenable number.

20110100221212 is an abundant number, since it is smaller than the sum of its proper divisors (29587009444068).

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

20110100221212 is a wasteful number, since it uses less digits than its factorization.

20110100221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26453690 (or 26453688 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20110100221212 its reverse (21212200101102), we get a palindrome (41322300322314).

The spelling of 20110100221212 in words is "twenty trillion, one hundred ten billion, one hundred million, two hundred twenty-one thousand, two hundred twelve".