202121212001011 has 16 divisors (see below), whose sum is σ = 225519546124800. Its totient is φ = 180023428464768.

The previous prime is 202121212000949. The next prime is 202121212001021. The reversal of 202121212001011 is 110100212121202.

It is not a de Polignac number, because 202121212001011 - 2⁴⁷ = 61383723645683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202121212001021) 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, 340161415 + ... + 340755088.

It is an arithmetic number, because the mean of its divisors is an integer number (14094971632800).

Almost surely, 2^{202121212001011} is an apocalyptic number.

202121212001011 is a deficient number, since it is larger than the sum of its proper divisors (23398334123789).

202121212001011 is a wasteful number, since it uses less digits than its factorization.

202121212001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680917458.

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

Adding to 202121212001011 its reverse (110100212121202), we get a palindrome (312221424122213).

The spelling of 202121212001011 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred twelve million, one thousand, eleven".