1020012011002 has 16 divisors (see below), whose sum is σ = 1562298199272. Its totient is φ = 499347936000.

The previous prime is 1020012010981. The next prime is 1020012011003. The reversal of 1020012011002 is 2001102100201.

It can be written as a sum of positive squares in 4 ways, for example, as 980315831881 + 39696179121 = 990109^2 + 199239^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020012011002.

It is not an unprimeable number, because it can be changed into a prime (1020012011003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25477749 + ... + 25517752.

Almost surely, 2^{1020012011002} is an apocalyptic number.

1020012011002 is a deficient number, since it is larger than the sum of its proper divisors (542286188270).

1020012011002 is a wasteful number, since it uses less digits than its factorization.

1020012011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50995713.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1020012011002 its reverse (2001102100201), we get a palindrome (3021114111203).

The spelling of 1020012011002 in words is "one trillion, twenty billion, twelve million, eleven thousand, two".