940222001 has 2 divisors, whose sum is σ = 940222002. Its totient is φ = 940222000.

The previous prime is 940221983. The next prime is 940222013. The reversal of 940222001 is 100222049.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 612612001 + 327610000 = 24751^2 + 18100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940222001 is a prime.

It is a super-2 number, since 2×940222001² = 1768034822328888002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (940222051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470111000 + 470111001.

It is an arithmetic number, because the mean of its divisors is an integer number (470111001).

Almost surely, 2^940222001 is an apocalyptic number.

It is an amenable number.

940222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

940222001 is an equidigital number, since it uses as much as digits as its factorization.

940222001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 940222001 is about 30663.0396568899. The cubic root of 940222001 is about 979.6632193461.

The spelling of 940222001 in words is "nine hundred forty million, two hundred twenty-two thousand, one".