20120221000202 has 4 divisors (see below), whose sum is σ = 30180331500306. Its totient is φ = 10060110500100.

The previous prime is 20120221000127. The next prime is 20120221000211. The reversal of 20120221000202 is 20200012202102.

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

It can be written as a sum of positive squares in only one way, i.e., 18548259219361 + 1571961780841 = 4306769^2 + 1253779^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030055250049 + ... + 5030055250052.

Almost surely, 2^{20120221000202} is an apocalyptic number.

20120221000202 is a deficient number, since it is larger than the sum of its proper divisors (10060110500104).

20120221000202 is a wasteful number, since it uses less digits than its factorization.

20120221000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060110500103.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20120221000202 its reverse (20200012202102), we get a palindrome (40320233202304).

The spelling of 20120221000202 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-one million, two hundred two", and thus it is an aban number.