201222210120 has 32 divisors (see below), whose sum is σ = 603666630720. Its totient is φ = 53659256000.

The previous prime is 201222210073. The next prime is 201222210131. The reversal of 201222210120 is 21012222102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201222210120.

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, 838425756 + ... + 838425995.

It is an arithmetic number, because the mean of its divisors is an integer number (18864582210).

Almost surely, 2^201222210120 is an apocalyptic number.

201222210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222210120 is an abundant number, since it is smaller than the sum of its proper divisors (402444420600).

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

201222210120 is a wasteful number, since it uses less digits than its factorization.

201222210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676851765 (or 1676851761 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201222210120 its reverse (21012222102), we get a palindrome (222234432222).

The spelling of 201222210120 in words is "two hundred one billion, two hundred twenty-two million, two hundred ten thousand, one hundred twenty".