22101222121000 has 64 divisors (see below), whose sum is σ = 56418392496960. Its totient is φ = 8036808040000.

The previous prime is 22101222120961. The next prime is 22101222121019. The reversal of 22101222121000 is 12122210122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1004590006 + ... + 1004612005.

It is an arithmetic number, because the mean of its divisors is an integer number (881537382765).

Almost surely, 2^{22101222121000} is an apocalyptic number.

22101222121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101222121000 is an abundant number, since it is smaller than the sum of its proper divisors (34317170375960).

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

22101222121000 is a wasteful number, since it uses less digits than its factorization.

22101222121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009202043 (or 2009202029 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22101222121000 its reverse (12122210122), we get a palindrome (22113344331122).

It can be divided in two parts, 22101222 and 121000, that added together give a palindrome (22222222).

The spelling of 22101222121000 in words is "twenty-two trillion, one hundred one billion, two hundred twenty-two million, one hundred twenty-one thousand".