2142221015 has 16 divisors (see below), whose sum is σ = 2813231520. Its totient is φ = 1553051520.

The previous prime is 2142220973. The next prime is 2142221129. The reversal of 2142221015 is 5101222412.

It is not a de Polignac number, because 2142221015 - 2¹² = 2142216919 is a prime.

It is a super-2 number, since 2×2142221015² = 9178221754215260450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44000 + ... + 78869.

It is an arithmetic number, because the mean of its divisors is an integer number (175826970).

Almost surely, 2^2142221015 is an apocalyptic number.

2142221015 is a deficient number, since it is larger than the sum of its proper divisors (671010505).

2142221015 is a wasteful number, since it uses less digits than its factorization.

2142221015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123202.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2142221015 is about 46284.1335124684. The cubic root of 2142221015 is about 1289.1044031038.

Adding to 2142221015 its reverse (5101222412), we get a palindrome (7243443427).

The spelling of 2142221015 in words is "two billion, one hundred forty-two million, two hundred twenty-one thousand, fifteen".