1202002100 has 36 divisors (see below), whose sum is σ = 2808989484. Its totient is φ = 443815680.

The previous prime is 1202002093. The next prime is 1202002127. The reversal of 1202002100 is 12002021.

It can be written as a sum of positive squares in 6 ways, for example, as 116035984 + 1085966116 = 10772^2 + 32954^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 461009 + ... + 463608.

Almost surely, 2^1202002100 is an apocalyptic number.

1202002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202002100 is an abundant number, since it is smaller than the sum of its proper divisors (1606987384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1202002100 is a wasteful number, since it uses less digits than its factorization.

1202002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924644 (or 924637 counting only the distinct ones).

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

The square root of 1202002100 is about 34669.9019323678. The cubic root of 1202002100 is about 1063.2492265727.

Adding to 1202002100 its reverse (12002021), we get a palindrome (1214004121).

The spelling of 1202002100 in words is "one billion, two hundred two million, two thousand, one hundred".