211220012002102 has 4 divisors (see below), whose sum is σ = 316830018003156. Its totient is φ = 105610006001050.

The previous prime is 211220012002081. The next prime is 211220012002151. The reversal of 211220012002102 is 201200210022112.

It is a happy number.

211220012002102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×211220012002102² (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 as a sum of consecutive naturals, namely, 52805003000524 + ... + 52805003000527.

It is an arithmetic number, because the mean of its divisors is an integer number (79207504500789).

Almost surely, 2^{211220012002102} is an apocalyptic number.

211220012002102 is a deficient number, since it is larger than the sum of its proper divisors (105610006001054).

211220012002102 is a wasteful number, since it uses less digits than its factorization.

211220012002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105610006001053.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211220012002102 its reverse (201200210022112), we get a palindrome (412420222024214).

The spelling of 211220012002102 in words is "two hundred eleven trillion, two hundred twenty billion, twelve million, two thousand, one hundred two".