20120022202211 has 4 divisors (see below), whose sum is σ = 20132927926800. Its totient is φ = 20107116477624.

The previous prime is 20120022202171. The next prime is 20120022202223. The reversal of 20120022202211 is 11220222002102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120022202211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20120022202211.

It is not an unprimeable number, because it can be changed into a prime (20120022202261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6452859956 + ... + 6452863073.

It is an arithmetic number, because the mean of its divisors is an integer number (5033231981700).

Almost surely, 2^{20120022202211} is an apocalyptic number.

20120022202211 is a deficient number, since it is larger than the sum of its proper divisors (12905724589).

20120022202211 is a wasteful number, since it uses less digits than its factorization.

20120022202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12905724588.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20120022202211 its reverse (11220222002102), we get a palindrome (31340244204313).

The spelling of 20120022202211 in words is "twenty trillion, one hundred twenty billion, twenty-two million, two hundred two thousand, two hundred eleven".