1021012010 has 16 divisors (see below), whose sum is σ = 1945929096. Its totient is φ = 384380928.

The previous prime is 1021011991. The next prime is 1021012033. The reversal of 1021012010 is 102101201.

It can be written as a sum of positive squares in 4 ways, for example, as 762477769 + 258534241 = 27613^2 + 16079^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3002807 + ... + 3003146.

Almost surely, 2^1021012010 is an apocalyptic number.

1021012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021012010 is a deficient number, since it is larger than the sum of its proper divisors (924917086).

1021012010 is a wasteful number, since it uses less digits than its factorization.

1021012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005977.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1021012010 is about 31953.2785485308. The cubic root of 1021012010 is about 1006.9555120186.

Adding to 1021012010 its reverse (102101201), we get a palindrome (1123113211).

The spelling of 1021012010 in words is "one billion, twenty-one million, twelve thousand, ten".