2122028280 has 160 divisors (see below), whose sum is σ = 7200206640. Its totient is φ = 560494080.

The previous prime is 2122028273. The next prime is 2122028297. The reversal of 2122028280 is 828202212.

It is a super-3 number, since 3×2122028280³ (a number of 29 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 (27).

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, 343620 + ... + 349740.

Almost surely, 2^2122028280 is an apocalyptic number.

2122028280 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 2122028280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3600103320).

2122028280 is an abundant number, since it is smaller than the sum of its proper divisors (5078178360).

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

2122028280 is a wasteful number, since it uses less digits than its factorization.

2122028280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251 (or 6238 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 2122028280 is about 46065.4781805204. The cubic root of 2122028280 is about 1285.0412115152.

The spelling of 2122028280 in words is "two billion, one hundred twenty-two million, twenty-eight thousand, two hundred eighty".