1201010121101 has 16 divisors (see below), whose sum is σ = 1419817943040. Its totient is φ = 994149696240.

The previous prime is 1201010121029. The next prime is 1201010121221. The reversal of 1201010121101 is 1011210101021.

It is a de Polignac number, because none of the positive numbers 2^k-1201010121101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201010121001) 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, 5673311 + ... + 5881196.

It is an arithmetic number, because the mean of its divisors is an integer number (88738621440).

Almost surely, 2^{1201010121101} is an apocalyptic number.

It is an amenable number.

1201010121101 is a deficient number, since it is larger than the sum of its proper divisors (218807821939).

1201010121101 is a wasteful number, since it uses less digits than its factorization.

1201010121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11555024.

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

Adding to 1201010121101 its reverse (1011210101021), we get a palindrome (2212220222122).

The spelling of 1201010121101 in words is "one trillion, two hundred one billion, ten million, one hundred twenty-one thousand, one hundred one".