1000021012010 has 16 divisors (see below), whose sum is σ = 1800194512896. Its totient is φ = 399973584528.

The previous prime is 1000021012009. The next prime is 1000021012033. The reversal of 1000021012010 is 102101200001.

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, 4231754 + ... + 4461813.

It is an arithmetic number, because the mean of its divisors is an integer number (112512157056).

Almost surely, 2^{1000021012010} is an apocalyptic number.

1000021012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000021012010 is a deficient number, since it is larger than the sum of its proper divisors (800173500886).

1000021012010 is a wasteful number, since it uses less digits than its factorization.

1000021012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8705077.

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

Adding to 1000021012010 its reverse (102101200001), we get a palindrome (1102122212011).

The spelling of 1000021012010 in words is "one trillion, twenty-one million, twelve thousand, ten".