102222021123 has 24 divisors (see below), whose sum is σ = 154108431360. Its totient is φ = 65170393200.

The previous prime is 102222021073. The next prime is 102222021127. The reversal of 102222021123 is 321120222201.

It is not a de Polignac number, because 102222021123 - 2³⁰ = 101148279299 is a prime.

It is a super-2 number, since 2×102222021123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102222021096 and 102222021105.

It is not an unprimeable number, because it can be changed into a prime (102222021127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 907048 + ... + 1013498.

It is an arithmetic number, because the mean of its divisors is an integer number (6421184640).

Almost surely, 2^102222021123 is an apocalyptic number.

102222021123 is a deficient number, since it is larger than the sum of its proper divisors (51886410237).

102222021123 is a wasteful number, since it uses less digits than its factorization.

102222021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111119 (or 111116 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 102222021123 its reverse (321120222201), we get a palindrome (423342243324).

The spelling of 102222021123 in words is "one hundred two billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-three".