1021200334 has 64 divisors (see below), whose sum is σ = 2017497600. Its totient is φ = 375580800.

The previous prime is 1021200331. The next prime is 1021200337. The reversal of 1021200334 is 4330021201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1021200331) and next prime (1021200337).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021200331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1231432 + ... + 1232260.

It is an arithmetic number, because the mean of its divisors is an integer number (31523400).

Almost surely, 2^1021200334 is an apocalyptic number.

1021200334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1021200334 is a deficient number, since it is larger than the sum of its proper divisors (996297266).

1021200334 is a wasteful number, since it uses less digits than its factorization.

1021200334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1021200334 is about 31956.2252777139. The cubic root of 1021200334 is about 1007.0174186466.

Adding to 1021200334 its reverse (4330021201), we get a palindrome (5351221535).

The spelling of 1021200334 in words is "one billion, twenty-one million, two hundred thousand, three hundred thirty-four".