102020122111 has 8 divisors (see below), whose sum is σ = 105459651200. Its totient is φ = 98589877920.

The previous prime is 102020122103. The next prime is 102020122121. The reversal of 102020122111 is 111221020201.

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

It is a cyclic number.

It is not a de Polignac number, because 102020122111 - 2³ = 102020122103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102020122091 and 102020122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020122121) 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, 2298876 + ... + 2342833.

It is an arithmetic number, because the mean of its divisors is an integer number (13182456400).

Almost surely, 2^102020122111 is an apocalyptic number.

102020122111 is a deficient number, since it is larger than the sum of its proper divisors (3439529089).

102020122111 is an equidigital number, since it uses as much as digits as its factorization.

102020122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642449.

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

Adding to 102020122111 its reverse (111221020201), we get a palindrome (213241142312).

The spelling of 102020122111 in words is "one hundred two billion, twenty million, one hundred twenty-two thousand, one hundred eleven".