1020210001002 has 24 divisors (see below), whose sum is σ = 2257485961536. Its totient is φ = 332834468136.

The previous prime is 1020210001001. The next prime is 1020210001033. The reversal of 1020210001002 is 2001000120201.

It is a super-2 number, since 2×1020210001002² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1020210001001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602960148 + ... + 602961839.

It is an arithmetic number, because the mean of its divisors is an integer number (94061915064).

Almost surely, 2^{1020210001002} is an apocalyptic number.

1020210001002 is an abundant number, since it is smaller than the sum of its proper divisors (1237275960534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020210001002 is a wasteful number, since it uses less digits than its factorization.

1020210001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205922042 (or 1205922039 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1020210001002 its reverse (2001000120201), we get a palindrome (3021210121203).

The spelling of 1020210001002 in words is "one trillion, twenty billion, two hundred ten million, one thousand, two".