20002220111 has 8 divisors (see below), whose sum is σ = 21180819600. Its totient is φ = 18823842688.

The previous prime is 20002220081. The next prime is 20002220123. The reversal of 20002220111 is 11102220002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20002220111 - 2³⁰ = 18928478287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20002220092 and 20002220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002220171) 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, 152165 + ... + 251313.

It is an arithmetic number, because the mean of its divisors is an integer number (2647602450).

Almost surely, 2^20002220111 is an apocalyptic number.

20002220111 is a deficient number, since it is larger than the sum of its proper divisors (1178599489).

20002220111 is a wasteful number, since it uses less digits than its factorization.

20002220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111033.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20002220111 its reverse (11102220002), we get a palindrome (31104440113).

The spelling of 20002220111 in words is "twenty billion, two million, two hundred twenty thousand, one hundred eleven".