102202022122 has 4 divisors (see below), whose sum is σ = 153303033186. Its totient is φ = 51101011060.

The previous prime is 102202022119. The next prime is 102202022141. The reversal of 102202022122 is 221220202201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66832073361 + 35369948761 = 258519^2 + 188069^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102202022096 and 102202022105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25550505529 + ... + 25550505532.

Almost surely, 2^102202022122 is an apocalyptic number.

102202022122 is a deficient number, since it is larger than the sum of its proper divisors (51101011064).

102202022122 is an equidigital number, since it uses as much as digits as its factorization.

102202022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51101011063.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 102202022122 its reverse (221220202201), we get a palindrome (323422224323).

The spelling of 102202022122 in words is "one hundred two billion, two hundred two million, twenty-two thousand, one hundred twenty-two".