2102201212101 has 32 divisors (see below), whose sum is σ = 2936516405760. Its totient is φ = 1335929859264.

The previous prime is 2102201212099. The next prime is 2102201212103. The reversal of 2102201212101 is 1012121022012.

It is an interprime number because it is at equal distance from previous prime (2102201212099) and next prime (2102201212103).

It is not a de Polignac number, because 2102201212101 - 2¹ = 2102201212099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102201212103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10610590 + ... + 10806896.

It is an arithmetic number, because the mean of its divisors is an integer number (91766137680).

Almost surely, 2^{2102201212101} is an apocalyptic number.

It is an amenable number.

2102201212101 is a deficient number, since it is larger than the sum of its proper divisors (834315193659).

2102201212101 is a wasteful number, since it uses less digits than its factorization.

2102201212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197905.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2102201212101 its reverse (1012121022012), we get a palindrome (3114322234113).

The spelling of 2102201212101 in words is "two trillion, one hundred two billion, two hundred one million, two hundred twelve thousand, one hundred one".