279228222000 has 2400 divisors, whose sum is σ = 1315842637824. Its totient is φ = 55800576000.

The previous prime is 279228221981. The next prime is 279228222023. The reversal of 279228222000 is 222822972.

It is a super-2 number, since 2×279228222000² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 5941025977 + ... + 5941026023.

Almost surely, 2^279228222000 is an apocalyptic number.

279228222000 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 279228222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657921318912).

279228222000 is an abundant number, since it is smaller than the sum of its proper divisors (1036614415824).

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

279228222000 is a wasteful number, since it uses less digits than its factorization.

279228222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 279228222000 in words is "two hundred seventy-nine billion, two hundred twenty-eight million, two hundred twenty-two thousand".