102220021111 has 8 divisors (see below), whose sum is σ = 111887741504. Its totient is φ = 92810106720.

The previous prime is 102220021069. The next prime is 102220021139. The reversal of 102220021111 is 111120022201.

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 102220021111 - 2⁷ = 102220020983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102220021091 and 102220021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102226021111) 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, 64450671 + ... + 64452256.

It is an arithmetic number, because the mean of its divisors is an integer number (13985967688).

Almost surely, 2^102220021111 is an apocalyptic number.

102220021111 is a deficient number, since it is larger than the sum of its proper divisors (9667720393).

102220021111 is a wasteful number, since it uses less digits than its factorization.

102220021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128903001.

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

Adding to 102220021111 its reverse (111120022201), we get a palindrome (213340043312).

The spelling of 102220021111 in words is "one hundred two billion, two hundred twenty million, twenty-one thousand, one hundred eleven".