221210034 has 32 divisors (see below), whose sum is σ = 454792320. Its totient is φ = 71702400.

The previous prime is 221210009. The next prime is 221210051. The reversal of 221210034 is 430012122.

It is a junction number, because it is equal to n+sod(n) for n = 221209995 and 221210022.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29179 + ... + 35969.

It is an arithmetic number, because the mean of its divisors is an integer number (14212260).

Almost surely, 2^221210034 is an apocalyptic number.

221210034 is an abundant number, since it is smaller than the sum of its proper divisors (233582286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221210034 is a wasteful number, since it uses less digits than its factorization.

221210034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6946.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 221210034 is about 14873.1312775757. The cubic root of 221210034 is about 604.7858304381.

Adding to 221210034 its reverse (430012122), we get a palindrome (651222156).

It can be divided in two parts, 2212 and 10034, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 221210034 in words is "two hundred twenty-one million, two hundred ten thousand, thirty-four".