1211030022320 has 40 divisors (see below), whose sum is σ = 2857669363824. Its totient is φ = 477181976832.

The previous prime is 1211030022317. The next prime is 1211030022331. The reversal of 1211030022320 is 232200301121.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112963859 + ... + 112974578.

Almost surely, 2^{1211030022320} is an apocalyptic number.

1211030022320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211030022320 is an abundant number, since it is smaller than the sum of its proper divisors (1646639341504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211030022320 is a wasteful number, since it uses less digits than its factorization.

1211030022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225938517 (or 225938511 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1211030022320 its reverse (232200301121), we get a palindrome (1443230323441).

The spelling of 1211030022320 in words is "one trillion, two hundred eleven billion, thirty million, twenty-two thousand, three hundred twenty".