212021102 has 16 divisors (see below), whose sum is σ = 323967600. Its totient is φ = 104038080.

The previous prime is 212021099. The next prime is 212021113. The reversal of 212021102 is 201120212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94352 + ... + 96572.

It is an arithmetic number, because the mean of its divisors is an integer number (20247975).

Almost surely, 2^212021102 is an apocalyptic number.

212021102 is a deficient number, since it is larger than the sum of its proper divisors (111946498).

212021102 is a wasteful number, since it uses less digits than its factorization.

212021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091.

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

The square root of 212021102 is about 14560.9444061846. The cubic root of 212021102 is about 596.2929790126.

Adding to 212021102 its reverse (201120212), we get a palindrome (413141314).

The spelling of 212021102 in words is "two hundred twelve million, twenty-one thousand, one hundred two".