1201210102101 has 16 divisors (see below), whose sum is σ = 1655142432768. Its totient is φ = 774100503600.

The previous prime is 1201210102093. The next prime is 1201210102177. The reversal of 1201210102101 is 1012010121021.

It is not a de Polignac number, because 1201210102101 - 2³ = 1201210102093 is a prime.

It is a super-2 number, since 2×1201210102101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201210102501) 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, 7198365 + ... + 7363346.

It is an arithmetic number, because the mean of its divisors is an integer number (103446402048).

Almost surely, 2^{1201210102101} is an apocalyptic number.

It is an amenable number.

1201210102101 is a deficient number, since it is larger than the sum of its proper divisors (453932330667).

1201210102101 is a wasteful number, since it uses less digits than its factorization.

1201210102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14562632.

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

Adding to 1201210102101 its reverse (1012010121021), we get a palindrome (2213220223122).

The spelling of 1201210102101 in words is "one trillion, two hundred one billion, two hundred ten million, one hundred two thousand, one hundred one".