1020122020111 has 4 divisors (see below), whose sum is σ = 1022901644512. Its totient is φ = 1017342395712.

The previous prime is 1020122020037. The next prime is 1020122020163. The reversal of 1020122020111 is 1110202210201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020122020111 - 2³³ = 1011532085519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020122020091 and 1020122020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020122023111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389811650 + ... + 1389812383.

It is an arithmetic number, because the mean of its divisors is an integer number (255725411128).

Almost surely, 2^{1020122020111} is an apocalyptic number.

1020122020111 is a deficient number, since it is larger than the sum of its proper divisors (2779624401).

1020122020111 is an equidigital number, since it uses as much as digits as its factorization.

1020122020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779624400.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020122020111 its reverse (1110202210201), we get a palindrome (2130324230312).

The spelling of 1020122020111 in words is "one trillion, twenty billion, one hundred twenty-two million, twenty thousand, one hundred eleven".