1211322010230 has 48 divisors (see below), whose sum is σ = 3180619797264. Its totient is φ = 319820990400.

The previous prime is 1211322010207. The next prime is 1211322010231. The reversal of 1211322010230 is 320102231121.

1211322010230 is a `hidden beast` number, since 1 + 211 + 3 + 220 + 1 + 0 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211322010231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66620284 + ... + 66638463.

It is an arithmetic number, because the mean of its divisors is an integer number (66262912443).

Almost surely, 2^{1211322010230} is an apocalyptic number.

1211322010230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211322010230 is an abundant number, since it is smaller than the sum of its proper divisors (1969297787034).

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

1211322010230 is a wasteful number, since it uses less digits than its factorization.

1211322010230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133258861 (or 133258858 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1211322010230 its reverse (320102231121), we get a palindrome (1531424241351).

The spelling of 1211322010230 in words is "one trillion, two hundred eleven billion, three hundred twenty-two million, ten thousand, two hundred thirty".