101222887 has 4 divisors (see below), whose sum is σ = 101263456. Its totient is φ = 101182320.

The previous prime is 101222881. The next prime is 101222909. The reversal of 101222887 is 788222101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788222101 = 47 ⋅16770683.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101222887 is a prime.

It is a super-2 number, since 2×101222887² = 20492145705229538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222881) 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, 16278 + ... + 21619.

It is an arithmetic number, because the mean of its divisors is an integer number (25315864).

Almost surely, 2^101222887 is an apocalyptic number.

101222887 is a deficient number, since it is larger than the sum of its proper divisors (40569).

101222887 is an equidigital number, since it uses as much as digits as its factorization.

101222887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40568.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 101222887 is about 10060.9585527424. The cubic root of 101222887 is about 466.0432690210.

Adding to 101222887 its reverse (788222101), we get a palindrome (889444988).

The spelling of 101222887 in words is "one hundred one million, two hundred twenty-two thousand, eight hundred eighty-seven".