101622001 has 4 divisors (see below), whose sum is σ = 109439092. Its totient is φ = 93804912.

The previous prime is 101621977. The next prime is 101622007. The reversal of 101622001 is 100226101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36012001 + 65610000 = 6001^2 + 8100^2 .

It is a cyclic number.

It is not a de Polignac number, because 101622001 - 2⁵ = 101621969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 7817077 = 101622001 / (1 + 0 + 1 + 6 + 2 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101622007) 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, 3908526 + ... + 3908551.

It is an arithmetic number, because the mean of its divisors is an integer number (27359773).

Almost surely, 2^101622001 is an apocalyptic number.

It is an amenable number.

101622001 is a deficient number, since it is larger than the sum of its proper divisors (7817091).

101622001 is an equidigital number, since it uses as much as digits as its factorization.

101622001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817090.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 101622001 is about 10080.7738294240. The cubic root of 101622001 is about 466.6549899006.

Adding to 101622001 its reverse (100226101), we get a palindrome (201848102).

The spelling of 101622001 in words is "one hundred one million, six hundred twenty-two thousand, one".