101211220222170 has 16 divisors (see below), whose sum is σ = 242906928533280. Its totient is φ = 26989658725904.

The previous prime is 101211220222169. The next prime is 101211220222193. The reversal of 101211220222170 is 71222022112101.

It is a super-2 number, since 2×101211220222170² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101211220222170.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686853670340 + ... + 1686853670399.

It is an arithmetic number, because the mean of its divisors is an integer number (15181683033330).

Almost surely, 2^{101211220222170} is an apocalyptic number.

101211220222170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101211220222170 is an abundant number, since it is smaller than the sum of its proper divisors (141695708311110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101211220222170 is a wasteful number, since it uses less digits than its factorization.

101211220222170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373707340749.

The product of its (nonzero) digits is 448, while the sum is 24.

Adding to 101211220222170 its reverse (71222022112101), we get a palindrome (172433242334271).

The spelling of 101211220222170 in words is "one hundred one trillion, two hundred eleven billion, two hundred twenty million, two hundred twenty-two thousand, one hundred seventy".