1521612650212 has 6 divisors (see below), whose sum is σ = 2662822137878. Its totient is φ = 760806325104.

The previous prime is 1521612650191. The next prime is 1521612650219. The reversal of 1521612650212 is 2120562161251.

It can be written as a sum of positive squares in only one way, i.e., 920172073536 + 601440576676 = 959256^2 + 775526^2 .

It is not an unprimeable number, because it can be changed into a prime (1521612650219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190201581273 + ... + 190201581280.

Almost surely, 2^{1521612650212} is an apocalyptic number.

It is an amenable number.

1521612650212 is a deficient number, since it is larger than the sum of its proper divisors (1141209487666).

1521612650212 is a wasteful number, since it uses less digits than its factorization.

1521612650212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380403162557 (or 380403162555 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 1521612650212 in words is "one trillion, five hundred twenty-one billion, six hundred twelve million, six hundred fifty thousand, two hundred twelve".