1211121200122 has 16 divisors (see below), whose sum is σ = 1822746481920. Its totient is φ = 603541059408.

The previous prime is 1211121200117. The next prime is 1211121200173. The reversal of 1211121200122 is 2210021211121.

It is a super-2 number, since 2×1211121200122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211121200096 and 1211121200105.

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, 697579 + ... + 1705537.

It is an arithmetic number, because the mean of its divisors is an integer number (113921655120).

Almost surely, 2^{1211121200122} is an apocalyptic number.

1211121200122 is a deficient number, since it is larger than the sum of its proper divisors (611625281798).

1211121200122 is a wasteful number, since it uses less digits than its factorization.

1211121200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009965.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1211121200122 its reverse (2210021211121), we get a palindrome (3421142411243).

The spelling of 1211121200122 in words is "one trillion, two hundred eleven billion, one hundred twenty-one million, two hundred thousand, one hundred twenty-two".