1211002011122 has 16 divisors (see below), whose sum is σ = 1835238632832. Its totient is φ = 599260705200.

The previous prime is 1211002011103. The next prime is 1211002011169. The reversal of 1211002011122 is 2211102001121.

It is a super-2 number, since 2×1211002011122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211002011097 and 1211002011106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730688 + ... + 1719275.

It is an arithmetic number, because the mean of its divisors is an integer number (114702414552).

Almost surely, 2^{1211002011122} is an apocalyptic number.

1211002011122 is a deficient number, since it is larger than the sum of its proper divisors (624236621710).

1211002011122 is a wasteful number, since it uses less digits than its factorization.

1211002011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452513.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1211002011122 its reverse (2211102001121), we get a palindrome (3422104012243).

The spelling of 1211002011122 in words is "one trillion, two hundred eleven billion, two million, eleven thousand, one hundred twenty-two".