122000021002 has 4 divisors (see below), whose sum is σ = 183000031506. Its totient is φ = 61000010500.

The previous prime is 122000020999. The next prime is 122000021023. The reversal of 122000021002 is 200120000221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200120000221 = 279977 ⋅714773.

It can be written as a sum of positive squares in only one way, i.e., 121125576961 + 874444041 = 348031^2 + 29571^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122000021002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30500005249 + ... + 30500005252.

Almost surely, 2^122000021002 is an apocalyptic number.

122000021002 is a deficient number, since it is larger than the sum of its proper divisors (61000010504).

122000021002 is an equidigital number, since it uses as much as digits as its factorization.

122000021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61000010503.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 122000021002 its reverse (200120000221), we get a palindrome (322120021223).

The spelling of 122000021002 in words is "one hundred twenty-two billion, twenty-one thousand, two".