22121100201020 has 12 divisors (see below), whose sum is σ = 46454310422184. Its totient is φ = 8848440080400.

The previous prime is 22121100201017. The next prime is 22121100201107. The reversal of 22121100201020 is 2010200112122.

It is a junction number, because it is equal to n+sod(n) for n = 22121100200986 and 22121100201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553027505006 + ... + 553027505045.

It is an arithmetic number, because the mean of its divisors is an integer number (3871192535182).

Almost surely, 2^{22121100201020} is an apocalyptic number.

22121100201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121100201020 is an abundant number, since it is smaller than the sum of its proper divisors (24333210221164).

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

22121100201020 is a wasteful number, since it uses less digits than its factorization.

22121100201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106055010060 (or 1106055010058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22121100201020 its reverse (2010200112122), we get a palindrome (24131300313142).

The spelling of 22121100201020 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred million, two hundred one thousand, twenty".