122002087 has 2 divisors, whose sum is σ = 122002088. Its totient is φ = 122002086.

The previous prime is 122002057. The next prime is 122002093. The reversal of 122002087 is 780200221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122002087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122002057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001043 + 61001044.

It is an arithmetic number, because the mean of its divisors is an integer number (61001044).

Almost surely, 2^122002087 is an apocalyptic number.

122002087 is a deficient number, since it is larger than the sum of its proper divisors (1).

122002087 is an equidigital number, since it uses as much as digits as its factorization.

122002087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 122002087 is about 11045.4554908342. The cubic root of 122002087 is about 495.9703944673.

The spelling of 122002087 in words is "one hundred twenty-two million, two thousand, eighty-seven".