101220167 has 4 divisors (see below), whose sum is σ = 102879576. Its totient is φ = 99560760.

The previous prime is 101220157. The next prime is 101220169. The reversal of 101220167 is 761022101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 761022101 = 7 ⋅108717443.

It is a cyclic number.

It is not a de Polignac number, because 101220167 - 2²⁴ = 84442951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829613 + ... + 829734.

It is an arithmetic number, because the mean of its divisors is an integer number (25719894).

Almost surely, 2^101220167 is an apocalyptic number.

101220167 is a deficient number, since it is larger than the sum of its proper divisors (1659409).

101220167 is an equidigital number, since it uses as much as digits as its factorization.

101220167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659408.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 101220167 is about 10060.8233758475. The cubic root of 101220167 is about 466.0390945730.

Adding to 101220167 its reverse (761022101), we get a palindrome (862242268).

The spelling of 101220167 in words is "one hundred one million, two hundred twenty thousand, one hundred sixty-seven".