211211221112102 has 8 divisors (see below), whose sum is σ = 317318918566512. Its totient is φ = 105438248256600.

The previous prime is 211211221112071. The next prime is 211211221112107. The reversal of 211211221112102 is 201211122112112.

It is a happy number.

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

It is a super-2 number, since 2×211211221112102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211211221112107) 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, 83681148149 + ... + 83681150672.

It is an arithmetic number, because the mean of its divisors is an integer number (39664864820814).

Almost surely, 2^{211211221112102} is an apocalyptic number.

211211221112102 is a deficient number, since it is larger than the sum of its proper divisors (106107697454410).

211211221112102 is a wasteful number, since it uses less digits than its factorization.

211211221112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167362299454.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 211211221112102 its reverse (201211122112112), we get a palindrome (412422343224214).

The spelling of 211211221112102 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred twenty-one million, one hundred twelve thousand, one hundred two".