1002102201021 has 8 divisors (see below), whose sum is σ = 1336195429920. Its totient is φ = 668038553072.

The previous prime is 1002102200987. The next prime is 1002102201029. The reversal of 1002102201021 is 1201022012001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002102201021 - 2¹⁰ = 1002102199997 is a prime.

It is a super-2 number, since 2×1002102201021² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1002102200988 and 1002102201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002102201029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7316070 + ... + 7451783.

It is an arithmetic number, because the mean of its divisors is an integer number (167024428740).

Almost surely, 2^{1002102201021} is an apocalyptic number.

It is an amenable number.

1002102201021 is a deficient number, since it is larger than the sum of its proper divisors (334093228899).

1002102201021 is a wasteful number, since it uses less digits than its factorization.

1002102201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14790475.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002102201021 its reverse (1201022012001), we get a palindrome (2203124213022).

The spelling of 1002102201021 in words is "one trillion, two billion, one hundred two million, two hundred one thousand, twenty-one".