1203212122 has 16 divisors (see below), whose sum is σ = 2063148480. Its totient is φ = 515537568.

The previous prime is 1203212119. The next prime is 1203212137. The reversal of 1203212122 is 2212123021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1203212096 and 1203212105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72093 + ... + 87199.

It is an arithmetic number, because the mean of its divisors is an integer number (128946780).

Almost surely, 2^1203212122 is an apocalyptic number.

1203212122 is a deficient number, since it is larger than the sum of its proper divisors (859936358).

1203212122 is a wasteful number, since it uses less digits than its factorization.

1203212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20805.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1203212122 is about 34687.3481546226. The cubic root of 1203212122 is about 1063.6058880361.

Adding to 1203212122 its reverse (2212123021), we get a palindrome (3415335143).

The spelling of 1203212122 in words is "one billion, two hundred three million, two hundred twelve thousand, one hundred twenty-two".