1022002100 has 36 divisors (see below), whose sum is σ = 2534566944. Its totient is φ = 350400480.

The previous prime is 1022002081. The next prime is 1022002159. The reversal of 1022002100 is 12002201.

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, 729302 + ... + 730701.

Almost surely, 2^1022002100 is an apocalyptic number.

1022002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022002100 is an abundant number, since it is smaller than the sum of its proper divisors (1512564844).

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

1022002100 is a wasteful number, since it uses less digits than its factorization.

1022002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460024 (or 1460017 counting only the distinct ones).

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

The square root of 1022002100 is about 31968.7675708652. The cubic root of 1022002100 is about 1007.2808932697.

Adding to 1022002100 its reverse (12002201), we get a palindrome (1034004301).

The spelling of 1022002100 in words is "one billion, twenty-two million, two thousand, one hundred".