1020220220111 has 8 divisors (see below), whose sum is σ = 1058644328448. Its totient is φ = 982140723000.

The previous prime is 1020220220093. The next prime is 1020220220137. The reversal of 1020220220111 is 1110220220201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020220220111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020220220161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86146775 + ... + 86158616.

It is an arithmetic number, because the mean of its divisors is an integer number (132330541056).

Almost surely, 2^{1020220220111} is an apocalyptic number.

1020220220111 is a deficient number, since it is larger than the sum of its proper divisors (38424108337).

1020220220111 is a wasteful number, since it uses less digits than its factorization.

1020220220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172305613.

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

Adding to 1020220220111 its reverse (1110220220201), we get a palindrome (2130440440312).

The spelling of 1020220220111 in words is "one trillion, twenty billion, two hundred twenty million, two hundred twenty thousand, one hundred eleven".