102212121220201 has 16 divisors (see below), whose sum is σ = 108514085232960. Its totient is φ = 96005935134720.

The previous prime is 102212121220199. The next prime is 102212121220207. The reversal of 102212121220201 is 102022121212201.

It is a cyclic number.

It is not a de Polignac number, because 102212121220201 - 2¹ = 102212121220199 is a prime.

It is a super-2 number, since 2×102212121220201² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (102212121220207) 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, 48127816 + ... + 50206681.

It is an arithmetic number, because the mean of its divisors is an integer number (6782130327060).

Almost surely, 2^{102212121220201} is an apocalyptic number.

It is an amenable number.

102212121220201 is a deficient number, since it is larger than the sum of its proper divisors (6301964012759).

102212121220201 is a wasteful number, since it uses less digits than its factorization.

102212121220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98334984.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102212121220201 its reverse (102022121212201), we get a palindrome (204234242432402).

The spelling of 102212121220201 in words is "one hundred two trillion, two hundred twelve billion, one hundred twenty-one million, two hundred twenty thousand, two hundred one".