220001000021109 has 64 divisors (see below), whose sum is σ = 358118703360000. Its totient is φ = 132861996634752.

The previous prime is 220001000021051. The next prime is 220001000021149. The reversal of 220001000021109 is 901120000100022.

It is not a de Polignac number, because 220001000021109 - 2⁹ = 220001000020597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220001000021091 and 220001000021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220001000021149) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31891162 + ... + 38171300.

It is an arithmetic number, because the mean of its divisors is an integer number (5595604740000).

Almost surely, 2^{220001000021109} is an apocalyptic number.

It is an amenable number.

220001000021109 is a deficient number, since it is larger than the sum of its proper divisors (138117703338891).

220001000021109 is a wasteful number, since it uses less digits than its factorization.

220001000021109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6283159 (or 6283153 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 220001000021109 in words is "two hundred twenty trillion, one billion, twenty-one thousand, one hundred nine".