22111121201020 has 12 divisors (see below), whose sum is σ = 46433354522184. Its totient is φ = 8844448480400.

The previous prime is 22111121201017. The next prime is 22111121201023. The reversal of 22111121201020 is 2010212111122.

It is an interprime number because it is at equal distance from previous prime (22111121201017) and next prime (22111121201023).

It is a super-2 number, since 2×22111121201020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22111121200985 and 22111121201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111121201023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552778030006 + ... + 552778030045.

It is an arithmetic number, because the mean of its divisors is an integer number (3869446210182).

Almost surely, 2^{22111121201020} is an apocalyptic number.

22111121201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111121201020 is an abundant number, since it is smaller than the sum of its proper divisors (24322233321164).

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

22111121201020 is a wasteful number, since it uses less digits than its factorization.

22111121201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105556060060 (or 1105556060058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22111121201020 its reverse (2010212111122), we get a palindrome (24121333312142).

The spelling of 22111121201020 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, two hundred one thousand, twenty".