1211120020122 has 16 divisors (see below), whose sum is σ = 2422276021440. Its totient is φ = 403700676512.

The previous prime is 1211120020079. The next prime is 1211120020147. The reversal of 1211120020122 is 2210200211121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051347 + ... + 1878182.

It is an arithmetic number, because the mean of its divisors is an integer number (151392251340).

Almost surely, 2^{1211120020122} is an apocalyptic number.

1211120020122 is an abundant number, since it is smaller than the sum of its proper divisors (1211156001318).

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

1211120020122 is a wasteful number, since it uses less digits than its factorization.

1211120020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998437.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1211120020122 its reverse (2210200211121), we get a palindrome (3421320231243).

The spelling of 1211120020122 in words is "one trillion, two hundred eleven billion, one hundred twenty million, twenty thousand, one hundred twenty-two".