102121112220211 has 8 divisors (see below), whose sum is σ = 116709903717120. Its totient is φ = 87532336018248.

The previous prime is 102121112220157. The next prime is 102121112220227. The reversal of 102121112220211 is 112022211121201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102121112220211 - 2¹¹ = 102121112218163 is a prime.

It is a super-2 number, since 2×102121112220211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102121112820211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23508360 + ... + 27511546.

It is an arithmetic number, because the mean of its divisors is an integer number (14588737964640).

Almost surely, 2^{102121112220211} is an apocalyptic number.

102121112220211 is a deficient number, since it is larger than the sum of its proper divisors (14588791496909).

102121112220211 is an equidigital number, since it uses as much as digits as its factorization.

102121112220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7647473.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102121112220211 its reverse (112022211121201), we get a palindrome (214143323341412).

The spelling of 102121112220211 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, two hundred eleven".