20211121022212 has 48 divisors (see below), whose sum is σ = 36557018910720. Its totient is φ = 9771134097312.

The previous prime is 20211121022159. The next prime is 20211121022221. The reversal of 20211121022212 is 21222012111202.

It is a self number, because there is not a number n which added to its sum of digits gives 20211121022212.

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, 24756589 + ... + 25559947.

It is an arithmetic number, because the mean of its divisors is an integer number (761604560640).

Almost surely, 2^{20211121022212} is an apocalyptic number.

It is an amenable number.

20211121022212 is a deficient number, since it is larger than the sum of its proper divisors (16345897888508).

20211121022212 is a wasteful number, since it uses less digits than its factorization.

20211121022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804880 (or 804878 counting only the distinct ones).

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

Adding to 20211121022212 its reverse (21222012111202), we get a palindrome (41433133133414).

The spelling of 20211121022212 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-one million, twenty-two thousand, two hundred twelve".