221465156350 has 24 divisors (see below), whose sum is σ = 412059784968. Its totient is φ = 88557117600.

The previous prime is 221465156309. The next prime is 221465156357. The reversal of 221465156350 is 53651564122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221465156357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568741 + ... + 875440.

It is an arithmetic number, because the mean of its divisors is an integer number (17169157707).

Almost surely, 2^221465156350 is an apocalyptic number.

221465156350 is a deficient number, since it is larger than the sum of its proper divisors (190594628618).

221465156350 is a wasteful number, since it uses less digits than its factorization.

221465156350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447260 (or 1447255 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 221465156350 in words is "two hundred twenty-one billion, four hundred sixty-five million, one hundred fifty-six thousand, three hundred fifty".