2222154 has 80 divisors (see below), whose sum is σ = 5749920. Its totient is φ = 635040.

The previous prime is 2222147. The next prime is 2222167. The reversal of 2222154 is 4512222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 51657 + ... + 51699.

It is an arithmetic number, because the mean of its divisors is an integer number (71874).

2^2222154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2874960).

2222154 is an abundant number, since it is smaller than the sum of its proper divisors (3527766).

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

2222154 is a wasteful number, since it uses less digits than its factorization.

2222154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 88 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2222154 is about 1490.6891023953. The cubic root of 2222154 is about 130.4942526204.

Adding to 2222154 its reverse (4512222), we get a palindrome (6734376).

The spelling of 2222154 in words is "two million, two hundred twenty-two thousand, one hundred fifty-four".