1211020011122 has 8 divisors (see below), whose sum is σ = 1860835626972. Its totient is φ = 590741468800.

The previous prime is 1211020011043. The next prime is 1211020011143. The reversal of 1211020011122 is 2211100201121.

It can be written as a sum of positive squares in 2 ways, for example, as 1043623653241 + 167396357881 = 1021579^2 + 409141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1211020011097 and 1211020011106.

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 3 ways as a sum of consecutive naturals, for example, 7384268279 + ... + 7384268442.

Almost surely, 2^{1211020011122} is an apocalyptic number.

1211020011122 is a deficient number, since it is larger than the sum of its proper divisors (649815615850).

1211020011122 is a wasteful number, since it uses less digits than its factorization.

1211020011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14768536764.

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

Adding to 1211020011122 its reverse (2211100201121), we get a palindrome (3422120212243).

The spelling of 1211020011122 in words is "one trillion, two hundred eleven billion, twenty million, eleven thousand, one hundred twenty-two".