22011111212020 has 24 divisors (see below), whose sum is σ = 52826666909184. Its totient is φ = 7546666701216.

The previous prime is 22011111212017. The next prime is 22011111212021. The reversal of 22011111212020 is 2021211111022.

It is a junction number, because it is equal to n+sod(n) for n = 22011111211985 and 22011111212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011111212021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78611111332 + ... + 78611111611.

It is an arithmetic number, because the mean of its divisors is an integer number (2201111121216).

Almost surely, 2^{22011111212020} is an apocalyptic number.

22011111212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011111212020 is an abundant number, since it is smaller than the sum of its proper divisors (30815555697164).

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

22011111212020 is a wasteful number, since it uses less digits than its factorization.

22011111212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157222222959 (or 157222222957 counting only the distinct ones).

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

Adding to 22011111212020 its reverse (2021211111022), we get a palindrome (24032322323042).

The spelling of 22011111212020 in words is "twenty-two trillion, eleven billion, one hundred eleven million, two hundred twelve thousand, twenty".