22487101 has 16 divisors (see below), whose sum is σ = 28137088. Its totient is φ = 17496000.

The previous prime is 22487099. The next prime is 22487131. The reversal of 22487101 is 10178422.

It is a happy number.

It is a 7-Lehmer number, since φ(22487101) divides (22487101-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 22487101 - 2¹ = 22487099 is a prime.

It is a super-2 number, since 2×22487101² = 1011339422768402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22487131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3526 + ... + 7576.

It is an arithmetic number, because the mean of its divisors is an integer number (1758568).

It is a Poulet number, since it divides 2^22487100-1.

Almost surely, 2^22487101 is an apocalyptic number.

It is an amenable number.

22487101 is a deficient number, since it is larger than the sum of its proper divisors (5649987).

22487101 is a wasteful number, since it uses less digits than its factorization.

22487101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 22487101 is about 4742.0566213406. The cubic root of 22487101 is about 282.2568498017.

The spelling of 22487101 in words is "twenty-two million, four hundred eighty-seven thousand, one hundred one".