1202122001 has 8 divisors (see below), whose sum is σ = 1267999680. Its totient is φ = 1136505168.

The previous prime is 1202121997. The next prime is 1202122013. The reversal of 1202122001 is 1002212021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1202122001 - 2² = 1202121997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202122601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55706 + ... + 74211.

It is an arithmetic number, because the mean of its divisors is an integer number (158499960).

Almost surely, 2^1202122001 is an apocalyptic number.

It is an amenable number.

1202122001 is a deficient number, since it is larger than the sum of its proper divisors (65877679).

1202122001 is a wasteful number, since it uses less digits than its factorization.

1202122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130423.

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

The square root of 1202122001 is about 34671.6310692185. The cubic root of 1202122001 is about 1063.2845788145.

Adding to 1202122001 its reverse (1002212021), we get a palindrome (2204334022).

The spelling of 1202122001 in words is "one billion, two hundred two million, one hundred twenty-two thousand, one".