1021204002 has 96 divisors (see below), whose sum is σ = 2670095232. Its totient is φ = 257596416.

The previous prime is 1021203983. The next prime is 1021204003. The reversal of 1021204002 is 2004021201.

It is a super-2 number, since 2×1021204002² = 2085715227401632008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021204003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82098 + ... + 93714.

It is an arithmetic number, because the mean of its divisors is an integer number (27813492).

Almost surely, 2^1021204002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021204002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1335047616).

1021204002 is an abundant number, since it is smaller than the sum of its proper divisors (1648891230).

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

1021204002 is a wasteful number, since it uses less digits than its factorization.

1021204002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11672 (or 11665 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1021204002 is about 31956.2826686710. The cubic root of 1021204002 is about 1007.0186243308.

Adding to 1021204002 its reverse (2004021201), we get a palindrome (3025225203).

The spelling of 1021204002 in words is "one billion, twenty-one million, two hundred four thousand, two".