20211011221122 has 48 divisors (see below), whose sum is σ = 45301025952000. Its totient is φ = 6504623832672.

The previous prime is 20211011221097. The next prime is 20211011221123. The reversal of 20211011221122 is 22112211011202.

20211011221122 is a `hidden beast` number, since 202 + 110 + 11 + 221 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20211011221095 and 20211011221104.

It is not an unprimeable number, because it can be changed into a prime (20211011221123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74782029 + ... + 75051807.

It is an arithmetic number, because the mean of its divisors is an integer number (943771374000).

Almost surely, 2^{20211011221122} is an apocalyptic number.

20211011221122 is an abundant number, since it is smaller than the sum of its proper divisors (25090014730878).

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

20211011221122 is a wasteful number, since it uses less digits than its factorization.

20211011221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413335 (or 413332 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20211011221122 its reverse (22112211011202), we get a palindrome (42323222232324).

The spelling of 20211011221122 in words is "twenty trillion, two hundred eleven billion, eleven million, two hundred twenty-one thousand, one hundred twenty-two".