20021123020202 has 8 divisors (see below), whose sum is σ = 31337409944736. Its totient is φ = 9575319705292.

The previous prime is 20021123020147. The next prime is 20021123020237. The reversal of 20021123020202 is 20202032112002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217620902348 + ... + 217620902439.

It is an arithmetic number, because the mean of its divisors is an integer number (3917176243092).

Almost surely, 2^{20021123020202} is an apocalyptic number.

20021123020202 is a deficient number, since it is larger than the sum of its proper divisors (11316286924534).

20021123020202 is a wasteful number, since it uses less digits than its factorization.

20021123020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435241804812.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20021123020202 its reverse (20202032112002), we get a palindrome (40223155132204).

The spelling of 20021123020202 in words is "twenty trillion, twenty-one billion, one hundred twenty-three million, twenty thousand, two hundred two".