1021312220132 has 6 divisors (see below), whose sum is σ = 1787296385238. Its totient is φ = 510656110064.

The previous prime is 1021312220111. The next prime is 1021312220143. The reversal of 1021312220132 is 2310222131201.

It can be written as a sum of positive squares in only one way, i.e., 906597239716 + 114714980416 = 952154^2 + 338696^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127664027513 + ... + 127664027520.

It is an arithmetic number, because the mean of its divisors is an integer number (297882730873).

Almost surely, 2^{1021312220132} is an apocalyptic number.

It is an amenable number.

1021312220132 is a deficient number, since it is larger than the sum of its proper divisors (765984165106).

1021312220132 is a wasteful number, since it uses less digits than its factorization.

1021312220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255328055037 (or 255328055035 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1021312220132 its reverse (2310222131201), we get a palindrome (3331534351333).

The spelling of 1021312220132 in words is "one trillion, twenty-one billion, three hundred twelve million, two hundred twenty thousand, one hundred thirty-two".