2142220973 has 2 divisors, whose sum is σ = 2142220974. Its totient is φ = 2142220972.

The previous prime is 2142220937. The next prime is 2142221129. The reversal of 2142220973 is 3790222412.

Together with previous prime (2142220937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2122168489 + 20052484 = 46067^2 + 4478^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142220973 - 2⁶ = 2142220909 is a prime.

It is a super-2 number, since 2×2142220973² = 9178221394322133458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142220903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071110486 + 1071110487.

It is an arithmetic number, because the mean of its divisors is an integer number (1071110487).

Almost surely, 2^2142220973 is an apocalyptic number.

It is an amenable number.

2142220973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142220973 is an equidigital number, since it uses as much as digits as its factorization.

2142220973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2142220973 is about 46284.1330587492. The cubic root of 2142220973 is about 1289.1043946792.

The spelling of 2142220973 in words is "two billion, one hundred forty-two million, two hundred twenty thousand, nine hundred seventy-three".