3420021662612 has 6 divisors (see below), whose sum is σ = 5985037909578. Its totient is φ = 1710010831304.

The previous prime is 3420021662611. The next prime is 3420021662647. The reversal of 3420021662612 is 2162661200243.

It can be written as a sum of positive squares in only one way, i.e., 3113721401476 + 306300261136 = 1764574^2 + 553444^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420021662611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427502707823 + ... + 427502707830.

It is an arithmetic number, because the mean of its divisors is an integer number (997506318263).

Almost surely, 2^{3420021662612} is an apocalyptic number.

It is an amenable number.

3420021662612 is a deficient number, since it is larger than the sum of its proper divisors (2565016246966).

3420021662612 is a wasteful number, since it uses less digits than its factorization.

3420021662612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855005415657 (or 855005415655 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 3420021662612 its reverse (2162661200243), we get a palindrome (5582682862855).

The spelling of 3420021662612 in words is "three trillion, four hundred twenty billion, twenty-one million, six hundred sixty-two thousand, six hundred twelve".