22251141212000 has 96 divisors (see below), whose sum is σ = 54883784329920. Its totient is φ = 8865823948800.

The previous prime is 22251141211979. The next prime is 22251141212009. The reversal of 22251141212000 is 21214115222.

It is a super-2 number, since 2×22251141212000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22251141212009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9794540 + ... + 11850539.

It is an arithmetic number, because the mean of its divisors is an integer number (571706086770).

Almost surely, 2^{22251141212000} is an apocalyptic number.

22251141212000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22251141212000 is an abundant number, since it is smaller than the sum of its proper divisors (32632643117920).

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

22251141212000 is a wasteful number, since it uses less digits than its factorization.

22251141212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21645361 (or 21645343 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 22251141212000 its reverse (21214115222), we get a palindrome (22272355327222).

The spelling of 22251141212000 in words is "twenty-two trillion, two hundred fifty-one billion, one hundred forty-one million, two hundred twelve thousand".