221402105034 has 64 divisors (see below), whose sum is σ = 500976800640. Its totient is φ = 64614654720.

The previous prime is 221402105033. The next prime is 221402105039. The reversal of 221402105034 is 430501204122.

It is a super-2 number, since 2×221402105034² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221402104995 and 221402105013.

It is not an unprimeable number, because it can be changed into a prime (221402105033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614172 + ... + 905544.

It is an arithmetic number, because the mean of its divisors is an integer number (7827762510).

Almost surely, 2^221402105034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221402105034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250488400320).

221402105034 is an abundant number, since it is smaller than the sum of its proper divisors (279574695606).

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

221402105034 is a wasteful number, since it uses less digits than its factorization.

221402105034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291815.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 221402105034 its reverse (430501204122), we get a palindrome (651903309156).

The spelling of 221402105034 in words is "two hundred twenty-one billion, four hundred two million, one hundred five thousand, thirty-four".