20020221201202 has 4 divisors (see below), whose sum is σ = 30030331801806. Its totient is φ = 10010110600600.

The previous prime is 20020221201187. The next prime is 20020221201217. The reversal of 20020221201202 is 20210212202002.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20020221201187) and next prime (20020221201217).

It can be written as a sum of positive squares in only one way, i.e., 18746553213441 + 1273667987761 = 4329729^2 + 1128569^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005055300299 + ... + 5005055300302.

Almost surely, 2^{20020221201202} is an apocalyptic number.

20020221201202 is a deficient number, since it is larger than the sum of its proper divisors (10010110600604).

20020221201202 is a wasteful number, since it uses less digits than its factorization.

20020221201202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010110600603.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20020221201202 its reverse (20210212202002), we get a palindrome (40230433403204).

The spelling of 20020221201202 in words is "twenty trillion, twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred two".