1201122122011 has 8 divisors (see below), whose sum is σ = 1432394083584. Its totient is φ = 984770932200.

The previous prime is 1201122121967. The next prime is 1201122122021. The reversal of 1201122122011 is 1102212211021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201122122011 - 2¹³ = 1201122113819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201122122021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3730192765 + ... + 3730193086.

It is an arithmetic number, because the mean of its divisors is an integer number (179049260448).

Almost surely, 2^{1201122122011} is an apocalyptic number.

1201122122011 is a deficient number, since it is larger than the sum of its proper divisors (231271961573).

1201122122011 is an equidigital number, since it uses as much as digits as its factorization.

1201122122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460385881.

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

Adding to 1201122122011 its reverse (1102212211021), we get a palindrome (2303334333032).

The spelling of 1201122122011 in words is "one trillion, two hundred one billion, one hundred twenty-two million, one hundred twenty-two thousand, eleven".