201102012102021 has 16 divisors (see below), whose sum is σ = 280893251308800. Its totient is φ = 127806429336768.

The previous prime is 201102012102007. The next prime is 201102012102023. The reversal of 201102012102021 is 120201210201102.

It is not a de Polignac number, because 201102012102021 - 2⁴² = 196703965590917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102012102023) 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, 14629849966 + ... + 14629863711.

It is an arithmetic number, because the mean of its divisors is an integer number (17555828206800).

Almost surely, 2^{201102012102021} is an apocalyptic number.

It is an amenable number.

201102012102021 is a deficient number, since it is larger than the sum of its proper divisors (79791239206779).

201102012102021 is a wasteful number, since it uses less digits than its factorization.

201102012102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29259713788.

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

Adding to 201102012102021 its reverse (120201210201102), we get a palindrome (321303222303123).

The spelling of 201102012102021 in words is "two hundred one trillion, one hundred two billion, twelve million, one hundred two thousand, twenty-one".