1020022120111 has 4 divisors (see below), whose sum is σ = 1080023421312. Its totient is φ = 960020818912.

The previous prime is 1020022120097. The next prime is 1020022120121. The reversal of 1020022120111 is 1110212200201.

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 1020022120111 - 2²⁹ = 1019485249199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020022120091 and 1020022120100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020022120121) 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, 30000650575 + ... + 30000650608.

It is an arithmetic number, because the mean of its divisors is an integer number (270005855328).

Almost surely, 2^{1020022120111} is an apocalyptic number.

1020022120111 is a deficient number, since it is larger than the sum of its proper divisors (60001301201).

1020022120111 is an equidigital number, since it uses as much as digits as its factorization.

1020022120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60001301200.

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

Adding to 1020022120111 its reverse (1110212200201), we get a palindrome (2130234320312).

The spelling of 1020022120111 in words is "one trillion, twenty billion, twenty-two million, one hundred twenty thousand, one hundred eleven".