211221210001034 has 4 divisors (see below), whose sum is σ = 316831815001554. Its totient is φ = 105610605000516.

The previous prime is 211221210001033. The next prime is 211221210001037. The reversal of 211221210001034 is 430100012122112.

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., 209807258325625 + 1413951675409 = 14484725^2 + 1189097^2 .

It is a super-2 number, since 2×211221210001034² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211221210000997 and 211221210001015.

It is not an unprimeable number, because it can be changed into a prime (211221210001033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52805302500257 + ... + 52805302500260.

Almost surely, 2^{211221210001034} is an apocalyptic number.

211221210001034 is a deficient number, since it is larger than the sum of its proper divisors (105610605000520).

211221210001034 is a wasteful number, since it uses less digits than its factorization.

211221210001034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105610605000519.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 211221210001034 its reverse (430100012122112), we get a palindrome (641321222123146).

The spelling of 211221210001034 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, one thousand, thirty-four".