220154222 has 4 divisors (see below), whose sum is σ = 330231336. Its totient is φ = 110077110.

The previous prime is 220154191. The next prime is 220154239. The reversal of 220154222 is 222451022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222451022 = 2 ⋅111225511.

It is a junction number, because it is equal to n+sod(n) for n = 220154194 and 220154203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55038554 + ... + 55038557.

It is an arithmetic number, because the mean of its divisors is an integer number (82557834).

Almost surely, 2^220154222 is an apocalyptic number.

220154222 is a deficient number, since it is larger than the sum of its proper divisors (110077114).

220154222 is a wasteful number, since it uses less digits than its factorization.

220154222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110077113.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 220154222 is about 14837.5948859645. The cubic root of 220154222 is about 603.8221027042.

The spelling of 220154222 in words is "two hundred twenty million, one hundred fifty-four thousand, two hundred twenty-two".