1031221212230 has 32 divisors (see below), whose sum is σ = 2025138827520. Its totient is φ = 374953354720.

The previous prime is 1031221212223. The next prime is 1031221212239. The reversal of 1031221212230 is 322121221301.

It is a super-2 number, since 2×1031221212230² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031221212239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706601 + ... + 1600539.

It is an arithmetic number, because the mean of its divisors is an integer number (63285588360).

Almost surely, 2^{1031221212230} is an apocalyptic number.

1031221212230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031221212230 is a deficient number, since it is larger than the sum of its proper divisors (993917615290).

1031221212230 is a wasteful number, since it uses less digits than its factorization.

1031221212230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904444.

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

Adding to 1031221212230 its reverse (322121221301), we get a palindrome (1353342433531).

The spelling of 1031221212230 in words is "one trillion, thirty-one billion, two hundred twenty-one million, two hundred twelve thousand, two hundred thirty".