222154046 has 4 divisors (see below), whose sum is σ = 333231072. Its totient is φ = 111077022.

The previous prime is 222154043. The next prime is 222154063. The reversal of 222154046 is 640451222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 640451222 = 2 ⋅320225611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222154043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55538510 + ... + 55538513.

It is an arithmetic number, because the mean of its divisors is an integer number (83307768).

Almost surely, 2^222154046 is an apocalyptic number.

222154046 is a deficient number, since it is larger than the sum of its proper divisors (111077026).

222154046 is a wasteful number, since it uses less digits than its factorization.

222154046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111077025.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 222154046 is about 14904.8329745757. The cubic root of 222154046 is about 605.6449157332.

The spelling of 222154046 in words is "two hundred twenty-two million, one hundred fifty-four thousand, forty-six".