122021202111211 has 32 divisors (see below), whose sum is σ = 140956021463040. Its totient is φ = 104676741396864.

The previous prime is 122021202111191. The next prime is 122021202111227. The reversal of 122021202111211 is 112111202120221.

It is a happy number.

It is not a de Polignac number, because 122021202111211 - 2⁹ = 122021202110699 is a prime.

It is a super-2 number, since 2×122021202111211² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122021202111241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81561826 + ... + 83044408.

It is an arithmetic number, because the mean of its divisors is an integer number (4404875670720).

Almost surely, 2^{122021202111211} is an apocalyptic number.

122021202111211 is a deficient number, since it is larger than the sum of its proper divisors (18934819351829).

122021202111211 is a wasteful number, since it uses less digits than its factorization.

122021202111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488955.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122021202111211 its reverse (112111202120221), we get a palindrome (234132404231432).

The spelling of 122021202111211 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred two million, one hundred eleven thousand, two hundred eleven".