1002100212002 has 4 divisors (see below), whose sum is σ = 1503150318006. Its totient is φ = 501050106000.

The previous prime is 1002100211993. The next prime is 1002100212011. The reversal of 1002100212002 is 2002120012001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1002100211993) and next prime (1002100212011).

It can be written as a sum of positive squares in only one way, i.e., 693274382161 + 308825829841 = 832631^2 + 555721^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250525052999 + ... + 250525053002.

Almost surely, 2^{1002100212002} is an apocalyptic number.

1002100212002 is a deficient number, since it is larger than the sum of its proper divisors (501050106004).

1002100212002 is an equidigital number, since it uses as much as digits as its factorization.

1002100212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501050106003.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1002100212002 its reverse (2002120012001), we get a palindrome (3004220224003).

The spelling of 1002100212002 in words is "one trillion, two billion, one hundred million, two hundred twelve thousand, two".