99973222 has 16 divisors (see below), whose sum is σ = 151488000. Its totient is φ = 49480200.

The previous prime is 99973219. The next prime is 99973229. The reversal of 99973222 is 22237999.

It is a happy number.

It is a super-2 number, since 2×99973222² = 19989290234122568, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99973229) 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, 94597 + ... + 95647.

It is an arithmetic number, because the mean of its divisors is an integer number (9468000).

Almost surely, 2^99973222 is an apocalyptic number.

99973222 is a deficient number, since it is larger than the sum of its proper divisors (51514778).

99973222 is a wasteful number, since it uses less digits than its factorization.

99973222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491.

The product of its digits is 122472, while the sum is 43.

The square root of 99973222 is about 9998.6610103553. The cubic root of 99973222 is about 464.1174488407.

The spelling of 99973222 in words is "ninety-nine million, nine hundred seventy-three thousand, two hundred twenty-two".