1200121101201 has 16 divisors (see below), whose sum is σ = 1745651533248. Its totient is φ = 727337438400.

The previous prime is 1200121101197. The next prime is 1200121101203. The reversal of 1200121101201 is 1021011210021.

It is not a de Polignac number, because 1200121101201 - 2² = 1200121101197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200121101203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3580371 + ... + 3901191.

It is an arithmetic number, because the mean of its divisors is an integer number (109103220828).

Almost surely, 2^{1200121101201} is an apocalyptic number.

1200121101201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200121101201 is a deficient number, since it is larger than the sum of its proper divisors (545530432047).

1200121101201 is a wasteful number, since it uses less digits than its factorization.

1200121101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434192.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1200121101201 its reverse (1021011210021), we get a palindrome (2221132311222).

The spelling of 1200121101201 in words is "one trillion, two hundred billion, one hundred twenty-one million, one hundred one thousand, two hundred one".