1030221212212 has 12 divisors (see below), whose sum is σ = 1804368549060. Its totient is φ = 514687341056.

The previous prime is 1030221212203. The next prime is 1030221212219. The reversal of 1030221212212 is 2122121220301.

It can be written as a sum of positive squares in 2 ways, for example, as 199305102096 + 830916110116 = 446436^2 + 911546^2 .

It is a super-2 number, since 2×1030221212212² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030221212212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030221212219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105810787 + ... + 105820522.

It is an arithmetic number, because the mean of its divisors is an integer number (150364045755).

Almost surely, 2^{1030221212212} is an apocalyptic number.

It is an amenable number.

1030221212212 is a deficient number, since it is larger than the sum of its proper divisors (774147336848).

1030221212212 is a wasteful number, since it uses less digits than its factorization.

1030221212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211632530 (or 211632528 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1030221212212 its reverse (2122121220301), we get a palindrome (3152342432513).

The spelling of 1030221212212 in words is "one trillion, thirty billion, two hundred twenty-one million, two hundred twelve thousand, two hundred twelve".