3520021151012 has 6 divisors (see below), whose sum is σ = 6160037014278. Its totient is φ = 1760010575504.

The previous prime is 3520021151011. The next prime is 3520021151029. The reversal of 3520021151012 is 2101511200253.

It can be written as a sum of positive squares in only one way, i.e., 2063061104896 + 1456960046116 = 1436336^2 + 1207046^2 .

It is not an unprimeable number, because it can be changed into a prime (3520021151011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440002643873 + ... + 440002643880.

It is an arithmetic number, because the mean of its divisors is an integer number (1026672835713).

Almost surely, 2^{3520021151012} is an apocalyptic number.

It is an amenable number.

3520021151012 is a deficient number, since it is larger than the sum of its proper divisors (2640015863266).

3520021151012 is a wasteful number, since it uses less digits than its factorization.

3520021151012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880005287757 (or 880005287755 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 3520021151012 its reverse (2101511200253), we get a palindrome (5621532351265).

The spelling of 3520021151012 in words is "three trillion, five hundred twenty billion, twenty-one million, one hundred fifty-one thousand, twelve".