1020210021002 has 8 divisors (see below), whose sum is σ = 1530461799300. Its totient is φ = 510056087904.

The previous prime is 1020210021001. The next prime is 1020210021011. The reversal of 1020210021002 is 2001200120201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 825897446521 + 194312574481 = 908789^2 + 440809^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1020210021001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24435227 + ... + 24476942.

Almost surely, 2^{1020210021002} is an apocalyptic number.

1020210021002 is a deficient number, since it is larger than the sum of its proper divisors (510251778298).

1020210021002 is a wasteful number, since it uses less digits than its factorization.

1020210021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48922600.

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

Adding to 1020210021002 its reverse (2001200120201), we get a palindrome (3021410141203).

The spelling of 1020210021002 in words is "one trillion, twenty billion, two hundred ten million, twenty-one thousand, two".