221214061 has 8 divisors (see below), whose sum is σ = 226105344. Its totient is φ = 216372240.

The previous prime is 221214053. The next prime is 221214073. The reversal of 221214061 is 160412122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221214061 - 2³ = 221214053 is a prime.

It is a super-2 number, since 2×221214061² = 97871321568223442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221214361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3250 + ... + 21283.

It is an arithmetic number, because the mean of its divisors is an integer number (28263168).

Almost surely, 2^221214061 is an apocalyptic number.

It is an amenable number.

221214061 is a deficient number, since it is larger than the sum of its proper divisors (4891283).

221214061 is a wasteful number, since it uses less digits than its factorization.

221214061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24731.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 221214061 is about 14873.2666553115. The cubic root of 221214061 is about 604.7895003406.

Adding to 221214061 its reverse (160412122), we get a palindrome (381626183).

The spelling of 221214061 in words is "two hundred twenty-one million, two hundred fourteen thousand, sixty-one".