2012212121012 has 6 divisors (see below), whose sum is σ = 3521371211778. Its totient is φ = 1006106060504.

The previous prime is 2012212121009. The next prime is 2012212121021. The reversal of 2012212121012 is 2101212122102.

It can be written as a sum of positive squares in only one way, i.e., 1292300598436 + 719911522576 = 1136794^2 + 848476^2 .

It is a super-2 number, since 2×2012212121012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251526515123 + ... + 251526515130.

It is an arithmetic number, because the mean of its divisors is an integer number (586895201963).

Almost surely, 2^{2012212121012} is an apocalyptic number.

It is an amenable number.

2012212121012 is a deficient number, since it is larger than the sum of its proper divisors (1509159090766).

2012212121012 is a wasteful number, since it uses less digits than its factorization.

2012212121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503053030257 (or 503053030255 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2012212121012 its reverse (2101212122102), we get a palindrome (4113424243114).

The spelling of 2012212121012 in words is "two trillion, twelve billion, two hundred twelve million, one hundred twenty-one thousand, twelve".