20200121222211 has 12 divisors (see below), whose sum is σ = 33346231858992. Its totient is φ = 11542926412656.

The previous prime is 20200121222153. The next prime is 20200121222243. The reversal of 20200121222211 is 11222212100202.

It is a happy number.

20200121222211 is a `hidden beast` number, since 20 + 200 + 1 + 212 + 22 + 211 = 666.

It is not a de Polignac number, because 20200121222211 - 2¹³ = 20200121214019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20200121222291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160318422336 + ... + 160318422461.

It is an arithmetic number, because the mean of its divisors is an integer number (2778852654916).

Almost surely, 2^{20200121222211} is an apocalyptic number.

20200121222211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20200121222211 is a deficient number, since it is larger than the sum of its proper divisors (13146110636781).

20200121222211 is a wasteful number, since it uses less digits than its factorization.

20200121222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320636844810 (or 320636844807 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20200121222211 its reverse (11222212100202), we get a palindrome (31422333322413).

The spelling of 20200121222211 in words is "twenty trillion, two hundred billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred eleven".