102201122 has 4 divisors (see below), whose sum is σ = 153301686. Its totient is φ = 51100560.

The previous prime is 102201109. The next prime is 102201149. The reversal of 102201122 is 221102201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221102201 = 503 ⋅439567.

It can be written as a sum of positive squares in only one way, i.e., 62900761 + 39300361 = 7931^2 + 6269^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25550279 + ... + 25550282.

Almost surely, 2^102201122 is an apocalyptic number.

102201122 is a deficient number, since it is larger than the sum of its proper divisors (51100564).

102201122 is an equidigital number, since it uses as much as digits as its factorization.

102201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51100563.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 102201122 is about 10109.4570576268. The cubic root of 102201122 is about 467.5397653650.

Adding to 102201122 its reverse (221102201), we get a palindrome (323303323).

The spelling of 102201122 in words is "one hundred two million, two hundred one thousand, one hundred twenty-two".