222061500 has 120 divisors (see below), whose sum is σ = 724611888. Its totient is φ = 59205600.

The previous prime is 222061451. The next prime is 222061537. The reversal of 222061500 is 5160222.

It is a super-3 number, since 3×222061500³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

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, 37759 + ... + 43241.

Almost surely, 2^222061500 is an apocalyptic number.

222061500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222061500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362305944).

222061500 is an abundant number, since it is smaller than the sum of its proper divisors (502550388).

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

222061500 is a wasteful number, since it uses less digits than its factorization.

222061500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514 (or 5493 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 222061500 is about 14901.7280877085. The cubic root of 222061500 is about 605.5608032290.

The spelling of 222061500 in words is "two hundred twenty-two million, sixty-one thousand, five hundred".