20201121222112 has 48 divisors (see below), whose sum is σ = 39843252464400. Its totient is φ = 10082202117120.

The previous prime is 20201121222091. The next prime is 20201121222133. The reversal of 20201121222112 is 21122212110202.

It is an interprime number because it is at equal distance from previous prime (20201121222091) and next prime (20201121222133).

It is a self number, because there is not a number n which added to its sum of digits gives 20201121222112.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 563173714 + ... + 563209582.

It is an arithmetic number, because the mean of its divisors is an integer number (830067759675).

Almost surely, 2^{20201121222112} is an apocalyptic number.

It is an amenable number.

20201121222112 is a deficient number, since it is larger than the sum of its proper divisors (19642131242288).

20201121222112 is a wasteful number, since it uses less digits than its factorization.

20201121222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67379 (or 67371 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20201121222112 its reverse (21122212110202), we get a palindrome (41323333332314).

The spelling of 20201121222112 in words is "twenty trillion, two hundred one billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twelve".