20110222120000 has 70 divisors (see below), whose sum is σ = 49866815134598. Its totient is φ = 8044088832000.

The previous prime is 20110222119961. The next prime is 20110222120013. The reversal of 20110222120000 is 2122201102.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 6310304769024 + 13799917350976 = 2512032^2 + 3714824^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 251337777 + ... + 251417776.

Almost surely, 2^{20110222120000} is an apocalyptic number.

20110222120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110222120000 is an abundant number, since it is smaller than the sum of its proper divisors (29756593014598).

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

20110222120000 is an frugal number, since it uses more digits than its factorization.

20110222120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502755585 (or 502755560 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20110222120000 its reverse (2122201102), we get a palindrome (20112344321102).

The spelling of 20110222120000 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, one hundred twenty thousand".