210111111121102 has 8 divisors (see below), whose sum is σ = 318287128728312. Its totient is φ = 104015401545000.

The previous prime is 210111111121097. The next prime is 210111111121133. The reversal of 210111111121102 is 201121111111012.

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

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, 520077007524 + ... + 520077007927.

It is an arithmetic number, because the mean of its divisors is an integer number (39785891091039).

Almost surely, 2^{210111111121102} is an apocalyptic number.

210111111121102 is a deficient number, since it is larger than the sum of its proper divisors (108176017607210).

210111111121102 is a wasteful number, since it uses less digits than its factorization.

210111111121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040154015554.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 210111111121102 its reverse (201121111111012), we get a palindrome (411232222232114).

The spelling of 210111111121102 in words is "two hundred ten trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty-one thousand, one hundred two".