212021101110202 has 4 divisors (see below), whose sum is σ = 318031651665306. Its totient is φ = 106010550555100.

The previous prime is 212021101110187. The next prime is 212021101110223. The reversal of 212021101110202 is 202011101120212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 200934338867161 + 11086762243041 = 14175131^2 + 3329679^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53005275277549 + ... + 53005275277552.

Almost surely, 2^{212021101110202} is an apocalyptic number.

212021101110202 is a deficient number, since it is larger than the sum of its proper divisors (106010550555104).

212021101110202 is a wasteful number, since it uses less digits than its factorization.

212021101110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106010550555103.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212021101110202 its reverse (202011101120212), we get a palindrome (414032202230414).

The spelling of 212021101110202 in words is "two hundred twelve trillion, twenty-one billion, one hundred one million, one hundred ten thousand, two hundred two".