1202123201 has 4 divisors (see below), whose sum is σ = 1207514112. Its totient is φ = 1196732292.

The previous prime is 1202123189. The next prime is 1202123233. The reversal of 1202123201 is 1023212021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1202123201 - 2¹⁰ = 1202122177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202123501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695121 + ... + 2695566.

It is an arithmetic number, because the mean of its divisors is an integer number (301878528).

Almost surely, 2^1202123201 is an apocalyptic number.

It is an amenable number.

1202123201 is a deficient number, since it is larger than the sum of its proper divisors (5390911).

1202123201 is an equidigital number, since it uses as much as digits as its factorization.

1202123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390910.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1202123201 is about 34671.6483744283. The cubic root of 1202123201 is about 1063.2849326170.

Adding to 1202123201 its reverse (1023212021), we get a palindrome (2225335222).

The spelling of 1202123201 in words is "one billion, two hundred two million, one hundred twenty-three thousand, two hundred one".