20022015 has 16 divisors (see below), whose sum is σ = 34499808. Its totient is φ = 9856896.

The previous prime is 20022011. The next prime is 20022017. The reversal of 20022015 is 51022002.

It is not a de Polignac number, because 20022015 - 2² = 20022011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022011) 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, 51144 + ... + 51533.

It is an arithmetic number, because the mean of its divisors is an integer number (2156238).

Almost surely, 2^20022015 is an apocalyptic number.

20022015 is a deficient number, since it is larger than the sum of its proper divisors (14477793).

20022015 is a wasteful number, since it uses less digits than its factorization.

20022015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102698.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20022015 is about 4474.5966298651. The cubic root of 20022015 is about 271.5413216446.

Adding to 20022015 its reverse (51022002), we get a palindrome (71044017).

The spelling of 20022015 in words is "twenty million, twenty-two thousand, fifteen".