211122211002020 has 48 divisors (see below), whose sum is σ = 448341305973120. Its totient is φ = 83499438046464.

The previous prime is 211122211002019. The next prime is 211122211002023. The reversal of 211122211002020 is 20200112221112.

It is a self number, because there is not a number n which added to its sum of digits gives 211122211002020.

It is not an unprimeable number, because it can be changed into a prime (211122211002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328065407 + ... + 328708313.

It is an arithmetic number, because the mean of its divisors is an integer number (9340443874440).

Almost surely, 2^{211122211002020} is an apocalyptic number.

211122211002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211122211002020 is an abundant number, since it is smaller than the sum of its proper divisors (237219094971100).

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

211122211002020 is a wasteful number, since it uses less digits than its factorization.

211122211002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827492 (or 827490 counting only the distinct ones).

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

Adding to 211122211002020 its reverse (20200112221112), we get a palindrome (231322323223132).

The spelling of 211122211002020 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred eleven million, two thousand, twenty".