22012121201000 has 128 divisors (see below), whose sum is σ = 59074716130560. Its totient is φ = 7520344416000.

The previous prime is 22012121200997. The next prime is 22012121201017. The reversal of 22012121201000 is 10212121022.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3574811 + ... + 7536810.

It is an arithmetic number, because the mean of its divisors is an integer number (461521219770).

Almost surely, 2^{22012121201000} is an apocalyptic number.

22012121201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012121201000 is an abundant number, since it is smaller than the sum of its proper divisors (37062594929560).

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

22012121201000 is a wasteful number, since it uses less digits than its factorization.

22012121201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111932 (or 11111918 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22012121201000 its reverse (10212121022), we get a palindrome (22022333322022).

The spelling of 22012121201000 in words is "twenty-two trillion, twelve billion, one hundred twenty-one million, two hundred one thousand".