202100021102 has 16 divisors (see below), whose sum is σ = 346570436832. Its totient is φ = 86585980320.

The previous prime is 202100021099. The next prime is 202100021107. The reversal of 202100021102 is 201120001202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202100021107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2315153 + ... + 2400860.

It is an arithmetic number, because the mean of its divisors is an integer number (21660652302).

Almost surely, 2^202100021102 is an apocalyptic number.

202100021102 is a deficient number, since it is larger than the sum of its proper divisors (144470415730).

202100021102 is a wasteful number, since it uses less digits than its factorization.

202100021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719083.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202100021102 its reverse (201120001202), we get a palindrome (403220022304).

The spelling of 202100021102 in words is "two hundred two billion, one hundred million, twenty-one thousand, one hundred two".