1012010020002 has 12 divisors (see below), whose sum is σ = 2192688376710. Its totient is φ = 337336673328.

The previous prime is 1012010020001. The next prime is 1012010020013. The reversal of 1012010020002 is 2000200102101.

It can be written as a sum of positive squares in only one way, i.e., 736457465241 + 275552554761 = 858171^2 + 524931^2 .

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 (1012010020001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28111389427 + ... + 28111389462.

Almost surely, 2^{1012010020002} is an apocalyptic number.

1012010020002 is an abundant number, since it is smaller than the sum of its proper divisors (1180678356708).

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

1012010020002 is a wasteful number, since it uses less digits than its factorization.

1012010020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56222778897 (or 56222778894 counting only the distinct ones).

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

Adding to 1012010020002 its reverse (2000200102101), we get a palindrome (3012210122103).

The spelling of 1012010020002 in words is "one trillion, twelve billion, ten million, twenty thousand, two".