1202122012111 has 4 divisors (see below), whose sum is σ = 1202131709424. Its totient is φ = 1202112314800.

The previous prime is 1202122012073. The next prime is 1202122012139. The reversal of 1202122012111 is 1112102212021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202122012111 - 2⁷ = 1202122011983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202122012151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4660270 + ... + 4911451.

It is an arithmetic number, because the mean of its divisors is an integer number (300532927356).

Almost surely, 2^{1202122012111} is an apocalyptic number.

1202122012111 is a deficient number, since it is larger than the sum of its proper divisors (9697313).

1202122012111 is an equidigital number, since it uses as much as digits as its factorization.

1202122012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9697312.

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

Adding to 1202122012111 its reverse (1112102212021), we get a palindrome (2314224224132).

The spelling of 1202122012111 in words is "one trillion, two hundred two billion, one hundred twenty-two million, twelve thousand, one hundred eleven".