20221995 has 8 divisors (see below), whose sum is σ = 32355216. Its totient is φ = 10785056.

The previous prime is 20221987. The next prime is 20222003. The reversal of 20221995 is 59912202.

It is an interprime number because it is at equal distance from previous prime (20221987) and next prime (20222003).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20221995 - 2³ = 20221987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674052 + ... + 674081.

It is an arithmetic number, because the mean of its divisors is an integer number (4044402).

Almost surely, 2^20221995 is an apocalyptic number.

20221995 is a deficient number, since it is larger than the sum of its proper divisors (12133221).

20221995 is a wasteful number, since it uses less digits than its factorization.

20221995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348141.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 20221995 is about 4496.8872567588. The cubic root of 20221995 is about 272.4423804330.

The spelling of 20221995 in words is "twenty million, two hundred twenty-one thousand, nine hundred ninety-five".