1021102200002 has 4 divisors (see below), whose sum is σ = 1531653300006. Its totient is φ = 510551100000.

The previous prime is 1021102199983. The next prime is 1021102200011. The reversal of 1021102200002 is 2000022011201.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1013104653961 + 7997546041 = 1006531^2 + 89429^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255275549999 + ... + 255275550002.

Almost surely, 2^{1021102200002} is an apocalyptic number.

1021102200002 is a deficient number, since it is larger than the sum of its proper divisors (510551100004).

1021102200002 is an equidigital number, since it uses as much as digits as its factorization.

1021102200002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510551100003.

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

Adding to 1021102200002 its reverse (2000022011201), we get a palindrome (3021124211203).

The spelling of 1021102200002 in words is "one trillion, twenty-one billion, one hundred two million, two hundred thousand, two".