1021213321130 has 16 divisors (see below), whose sum is σ = 1844820026280. Its totient is φ = 407010651072.

The previous prime is 1021213321097. The next prime is 1021213321153. The reversal of 1021213321130 is 311233121201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 890171493121 + 131041828009 = 943489^2 + 361997^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184331765 + ... + 184337304.

Almost surely, 2^{1021213321130} is an apocalyptic number.

1021213321130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021213321130 is a deficient number, since it is larger than the sum of its proper divisors (823606705150).

1021213321130 is a wasteful number, since it uses less digits than its factorization.

1021213321130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368669353.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1021213321130 its reverse (311233121201), we get a palindrome (1332446442331).

The spelling of 1021213321130 in words is "one trillion, twenty-one billion, two hundred thirteen million, three hundred twenty-one thousand, one hundred thirty".