1202111122 has 4 divisors (see below), whose sum is σ = 1803166686. Its totient is φ = 601055560.

The previous prime is 1202111117. The next prime is 1202111129. The reversal of 1202111122 is 2211112021.

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., 920576281 + 281534841 = 30341^2 + 16779^2 .

It is a super-2 number, since 2×1202111122² = 2890142299272197768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1202111129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300527779 + ... + 300527782.

Almost surely, 2^1202111122 is an apocalyptic number.

1202111122 is a deficient number, since it is larger than the sum of its proper divisors (601055564).

1202111122 is an equidigital number, since it uses as much as digits as its factorization.

1202111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601055563.

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

The square root of 1202111122 is about 34671.4741826765. The cubic root of 1202111122 is about 1063.2813712899.

Adding to 1202111122 its reverse (2211112021), we get a palindrome (3413223143).

The spelling of 1202111122 in words is "one billion, two hundred two million, one hundred eleven thousand, one hundred twenty-two".