221852034 has 20 divisors (see below), whose sum is σ = 497113254. Its totient is φ = 73950624.

The previous prime is 221851957. The next prime is 221852077. The reversal of 221852034 is 430258122.

It can be written as a sum of positive squares in only one way, i.e., 162639009 + 59213025 = 12753^2 + 7695^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 221851989 and 221852007.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 684567 + ... + 684890.

Almost surely, 2^221852034 is an apocalyptic number.

221852034 is an abundant number, since it is smaller than the sum of its proper divisors (275261220).

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

221852034 is a wasteful number, since it uses less digits than its factorization.

221852034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369471 (or 1369462 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 221852034 is about 14894.6981842533. The cubic root of 221852034 is about 605.3703390207.

The spelling of 221852034 in words is "two hundred twenty-one million, eight hundred fifty-two thousand, thirty-four".