211220212102 has 8 divisors (see below), whose sum is σ = 323571388896. Its totient is φ = 103363082472.

The previous prime is 211220212067. The next prime is 211220212117. The reversal of 211220212102 is 201212022112.

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 2×211220212102² (a number of 23 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, 1123511673 + ... + 1123511860.

It is an arithmetic number, because the mean of its divisors is an integer number (40446423612).

Almost surely, 2^211220212102 is an apocalyptic number.

211220212102 is a deficient number, since it is larger than the sum of its proper divisors (112351176794).

211220212102 is a wasteful number, since it uses less digits than its factorization.

211220212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247023582.

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

Adding to 211220212102 its reverse (201212022112), we get a palindrome (412432234214).

The spelling of 211220212102 in words is "two hundred eleven billion, two hundred twenty million, two hundred twelve thousand, one hundred two".