15001201022222 has 8 divisors (see below), whose sum is σ = 22810045390176. Its totient is φ = 7397852558832.

The previous prime is 15001201022221. The next prime is 15001201022239. The reversal of 15001201022222 is 22222010210051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×15001201022222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15001201022194 and 15001201022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15001201022221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51373975958 + ... + 51373976249.

It is an arithmetic number, because the mean of its divisors is an integer number (2851255673772).

Almost surely, 2^{15001201022222} is an apocalyptic number.

15001201022222 is a deficient number, since it is larger than the sum of its proper divisors (7808844367954).

15001201022222 is a wasteful number, since it uses less digits than its factorization.

15001201022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102747952282.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 15001201022222 its reverse (22222010210051), we get a palindrome (37223211232273).

The spelling of 15001201022222 in words is "fifteen trillion, one billion, two hundred one million, twenty-two thousand, two hundred twenty-two".