1021004342212 has 12 divisors (see below), whose sum is σ = 1830337052796. Its totient is φ = 498050898560.

The previous prime is 1021004342203. The next prime is 1021004342213. The reversal of 1021004342212 is 2122434001201.

It can be written as a sum of positive squares in 2 ways, for example, as 392196577536 + 628807764676 = 626256^2 + 792974^2 .

It is not an unprimeable number, because it can be changed into a prime (1021004342213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3112817953 + ... + 3112818280.

It is an arithmetic number, because the mean of its divisors is an integer number (152528087733).

Almost surely, 2^{1021004342212} is an apocalyptic number.

It is an amenable number.

1021004342212 is a deficient number, since it is larger than the sum of its proper divisors (809332710584).

1021004342212 is a wasteful number, since it uses less digits than its factorization.

1021004342212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6225636278 (or 6225636276 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1021004342212 its reverse (2122434001201), we get a palindrome (3143438343413).

The spelling of 1021004342212 in words is "one trillion, twenty-one billion, four million, three hundred forty-two thousand, two hundred twelve".