102220121011 has 32 divisors (see below), whose sum is σ = 112565376000. Its totient is φ = 92452735872.

The previous prime is 102220120999. The next prime is 102220121021. The reversal of 102220121011 is 110121022201.

It is a cyclic number.

It is not a de Polignac number, because 102220121011 - 2¹⁷ = 102219989939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102220120982 and 102220121000.

It is not an unprimeable number, because it can be changed into a prime (102220121021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18124530 + ... + 18130168.

It is an arithmetic number, because the mean of its divisors is an integer number (3517668000).

Almost surely, 2^102220121011 is an apocalyptic number.

102220121011 is a deficient number, since it is larger than the sum of its proper divisors (10345254989).

102220121011 is a wasteful number, since it uses less digits than its factorization.

102220121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051.

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

Adding to 102220121011 its reverse (110121022201), we get a palindrome (212341143212).

The spelling of 102220121011 in words is "one hundred two billion, two hundred twenty million, one hundred twenty-one thousand, eleven".