1211222001114 has 48 divisors (see below), whose sum is σ = 2656208973600. Its totient is φ = 398834813088.

The previous prime is 1211222001113. The next prime is 1211222001127. The reversal of 1211222001114 is 4111002221121.

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

It is not an unprimeable number, because it can be changed into a prime (1211222001113) 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, 16485492 + ... + 16558800.

It is an arithmetic number, because the mean of its divisors is an integer number (55337686950).

Almost surely, 2^{1211222001114} is an apocalyptic number.

1211222001114 is an abundant number, since it is smaller than the sum of its proper divisors (1444986972486).

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

1211222001114 is a wasteful number, since it uses less digits than its factorization.

1211222001114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84459 (or 84456 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1211222001114 its reverse (4111002221121), we get a palindrome (5322224222235).

The spelling of 1211222001114 in words is "one trillion, two hundred eleven billion, two hundred twenty-two million, one thousand, one hundred fourteen".