1201012101101 has 4 divisors (see below), whose sum is σ = 1271659871772. Its totient is φ = 1130364330432.

The previous prime is 1201012101089. The next prime is 1201012101103. The reversal of 1201012101101 is 1011012101021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 794317650025 + 406694451076 = 891245^2 + 637726^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201012101101 - 2³⁴ = 1183832231917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201012101103) 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, 35323885310 + ... + 35323885343.

It is an arithmetic number, because the mean of its divisors is an integer number (317914967943).

Almost surely, 2^{1201012101101} is an apocalyptic number.

It is an amenable number.

1201012101101 is a deficient number, since it is larger than the sum of its proper divisors (70647770671).

1201012101101 is an equidigital number, since it uses as much as digits as its factorization.

1201012101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70647770670.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1201012101101 its reverse (1011012101021), we get a palindrome (2212024202122).

The spelling of 1201012101101 in words is "one trillion, two hundred one billion, twelve million, one hundred one thousand, one hundred one".