1211310230022 has 12 divisors (see below), whose sum is σ = 2624505498420. Its totient is φ = 403770076668.

The previous prime is 1211310230021. The next prime is 1211310230023. The reversal of 1211310230022 is 2200320131121.

1211310230022 is a `hidden beast` number, since 121 + 1 + 310 + 230 + 0 + 2 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1211310230021) and next prime (1211310230023).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67295012779 = 1211310230022 / (1 + 2 + 1 + 1 + 3 + 1 + 0 + 2 + 3 + 0 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1211310229977 and 1211310230004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211310230021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33647506372 + ... + 33647506407.

It is an arithmetic number, because the mean of its divisors is an integer number (218708791535).

Almost surely, 2^{1211310230022} is an apocalyptic number.

1211310230022 is an abundant number, since it is smaller than the sum of its proper divisors (1413195268398).

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

1211310230022 is a wasteful number, since it uses less digits than its factorization.

1211310230022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67295012787 (or 67295012784 counting only the distinct ones).

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

Adding to 1211310230022 its reverse (2200320131121), we get a palindrome (3411630361143).

The spelling of 1211310230022 in words is "one trillion, two hundred eleven billion, three hundred ten million, two hundred thirty thousand, twenty-two".