1200011022101 has 48 divisors (see below), whose sum is σ = 1325535840000. Its totient is φ = 1082524285440.

The previous prime is 1200011022037. The next prime is 1200011022103. The reversal of 1200011022101 is 1012201100021.

It is not a de Polignac number, because 1200011022101 - 2⁶ = 1200011022037 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 (1200011022103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1458093176 + ... + 1458093998.

It is an arithmetic number, because the mean of its divisors is an integer number (27615330000).

Almost surely, 2^{1200011022101} is an apocalyptic number.

It is an amenable number.

1200011022101 is a deficient number, since it is larger than the sum of its proper divisors (125524817899).

1200011022101 is a wasteful number, since it uses less digits than its factorization.

1200011022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200011022101 its reverse (1012201100021), we get a palindrome (2212212122122).

The spelling of 1200011022101 in words is "one trillion, two hundred billion, eleven million, twenty-two thousand, one hundred one".