211220102195 has 16 divisors (see below), whose sum is σ = 253963360128. Its totient is φ = 168643399680.

The previous prime is 211220102189. The next prime is 211220102239. The reversal of 211220102195 is 591201022112.

It is not a de Polignac number, because 211220102195 - 2⁴ = 211220102179 is a prime.

It is a super-2 number, since 2×211220102195² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21393110 + ... + 21402980.

It is an arithmetic number, because the mean of its divisors is an integer number (15872710008).

Almost surely, 2^211220102195 is an apocalyptic number.

211220102195 is a deficient number, since it is larger than the sum of its proper divisors (42743257933).

211220102195 is an equidigital number, since it uses as much as digits as its factorization.

211220102195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17870.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 211220102195 in words is "two hundred eleven billion, two hundred twenty million, one hundred two thousand, one hundred ninety-five".