1002201021010 has 32 divisors (see below), whose sum is σ = 2069509761792. Its totient is φ = 342305263680.

The previous prime is 1002201020881. The next prime is 1002201021047. The reversal of 1002201021010 is 101201022001.

It is a super-2 number, since 2×1002201021010² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27200521 + ... + 27237340.

It is an arithmetic number, because the mean of its divisors is an integer number (64672180056).

Almost surely, 2^{1002201021010} is an apocalyptic number.

1002201021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002201021010 is an abundant number, since it is smaller than the sum of its proper divisors (1067308740782).

1002201021010 is a wasteful number, since it uses less digits than its factorization.

1002201021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54438138.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1002201021010 its reverse (101201022001), we get a palindrome (1103402043011).

Subtracting from 1002201021010 its reverse (101201022001), we obtain a palindrome (900999999009).

The spelling of 1002201021010 in words is "one trillion, two billion, two hundred one million, twenty-one thousand, ten".