12221029000 has 32 divisors (see below), whose sum is σ = 28597210200. Its totient is φ = 4888411200.

The previous prime is 12221028991. The next prime is 12221029027. The reversal of 12221029000 is 92012221.

It can be written as a sum of positive squares in 4 ways, for example, as 5809183524 + 6411845476 = 76218^2 + 80074^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6109515 + ... + 6111514.

Almost surely, 2^12221029000 is an apocalyptic number.

12221029000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221029000 is an abundant number, since it is smaller than the sum of its proper divisors (16376181200).

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

12221029000 is a wasteful number, since it uses less digits than its factorization.

12221029000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12221050 (or 12221036 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 12221029000 in words is "twelve billion, two hundred twenty-one million, twenty-nine thousand".