210111212202122 has 64 divisors (see below), whose sum is σ = 396759086051328. Its totient is φ = 81064915344000.

The previous prime is 210111212202011. The next prime is 210111212202239. The reversal of 210111212202122 is 221202212111012.

It is a junction number, because it is equal to n+sod(n) for n = 210111212202094 and 210111212202103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 862152347 + ... + 862396017.

It is an arithmetic number, because the mean of its divisors is an integer number (6199360719552).

Almost surely, 2^{210111212202122} is an apocalyptic number.

210111212202122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210111212202122 is a deficient number, since it is larger than the sum of its proper divisors (186647873849206).

210111212202122 is a wasteful number, since it uses less digits than its factorization.

210111212202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298155.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 210111212202122 its reverse (221202212111012), we get a palindrome (431313424313134).

The spelling of 210111212202122 in words is "two hundred ten trillion, one hundred eleven billion, two hundred twelve million, two hundred two thousand, one hundred twenty-two".