1202002101 has 24 divisors (see below), whose sum is σ = 1746879264. Its totient is φ = 796436640.

The previous prime is 1202002093. The next prime is 1202002127. The reversal of 1202002101 is 1012002021.

It is not a de Polignac number, because 1202002101 - 2³ = 1202002093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202002141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1739166 + ... + 1739856.

It is an arithmetic number, because the mean of its divisors is an integer number (72786636).

Almost surely, 2^1202002101 is an apocalyptic number.

It is an amenable number.

1202002101 is a deficient number, since it is larger than the sum of its proper divisors (544877163).

1202002101 is a wasteful number, since it uses less digits than its factorization.

1202002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1598 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1202002101 is about 34669.9019467895. The cubic root of 1202002101 is about 1063.2492268675.

Adding to 1202002101 its reverse (1012002021), we get a palindrome (2214004122).

The spelling of 1202002101 in words is "one billion, two hundred two million, two thousand, one hundred one".