221212212022102 has 8 divisors (see below), whose sum is σ = 379220934895056. Its totient is φ = 94805233723752.

The previous prime is 221212212022079. The next prime is 221212212022117. The reversal of 221212212022102 is 201220212212122.

221212212022102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×221212212022102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7900436143633 + ... + 7900436143660.

It is an arithmetic number, because the mean of its divisors is an integer number (47402616861882).

Almost surely, 2^{221212212022102} is an apocalyptic number.

221212212022102 is a deficient number, since it is larger than the sum of its proper divisors (158008722872954).

221212212022102 is a wasteful number, since it uses less digits than its factorization.

221212212022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15800872287302.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221212212022102 its reverse (201220212212122), we get a palindrome (422432424234224).

The spelling of 221212212022102 in words is "two hundred twenty-one trillion, two hundred twelve billion, two hundred twelve million, twenty-two thousand, one hundred two".