222149000 has 32 divisors (see below), whose sum is σ = 519831000. Its totient is φ = 88859200.

The previous prime is 222148991. The next prime is 222149009. The reversal of 222149000 is 941222.

It is an interprime number because it is at equal distance from previous prime (222148991) and next prime (222149009).

It can be written as a sum of positive squares in 4 ways, for example, as 59382436 + 162766564 = 7706^2 + 12758^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (222149009) 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, 110075 + ... + 112074.

Almost surely, 2^222149000 is an apocalyptic number.

222149000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222149000 is an abundant number, since it is smaller than the sum of its proper divisors (297682000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222149000 is a wasteful number, since it uses less digits than its factorization.

222149000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222170 (or 222156 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 222149000 is about 14904.6636996613. The cubic root of 222149000 is about 605.6403301653.

The spelling of 222149000 in words is "two hundred twenty-two million, one hundred forty-nine thousand".