20012221001211 has 8 divisors (see below), whose sum is σ = 26799480817680. Its totient is φ = 13283220926112.

The previous prime is 20012221001107. The next prime is 20012221001251. The reversal of 20012221001211 is 11210012221002.

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

It is not a de Polignac number, because 20012221001211 - 2¹⁴ = 20012220984827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20012221001251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14564934540 + ... + 14564935913.

It is an arithmetic number, because the mean of its divisors is an integer number (3349935102210).

Almost surely, 2^{20012221001211} is an apocalyptic number.

20012221001211 is a deficient number, since it is larger than the sum of its proper divisors (6787259816469).

20012221001211 is a wasteful number, since it uses less digits than its factorization.

20012221001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29129870685.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20012221001211 its reverse (11210012221002), we get a palindrome (31222233222213).

The spelling of 20012221001211 in words is "twenty trillion, twelve billion, two hundred twenty-one million, one thousand, two hundred eleven".