2012020121002 has 16 divisors (see below), whose sum is σ = 3021200187912. Its totient is φ = 1004953907200.

The previous prime is 2012020120889. The next prime is 2012020121003. The reversal of 2012020121002 is 2001210202102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1646707464081 + 365312656921 = 1283241^2 + 604411^2 .

It is not an unprimeable number, because it can be changed into a prime (2012020121003) 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, 7807002 + ... + 8060602.

Almost surely, 2^{2012020121002} is an apocalyptic number.

2012020121002 is a deficient number, since it is larger than the sum of its proper divisors (1009180066910).

2012020121002 is a wasteful number, since it uses less digits than its factorization.

2012020121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257753.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2012020121002 its reverse (2001210202102), we get a palindrome (4013230323104).

The spelling of 2012020121002 in words is "two trillion, twelve billion, twenty million, one hundred twenty-one thousand, two".