1220122100211 has 16 divisors (see below), whose sum is σ = 1865850175488. Its totient is φ = 694731441600.

The previous prime is 1220122100207. The next prime is 1220122100227. The reversal of 1220122100211 is 1120012210221.

It is not a de Polignac number, because 1220122100211 - 2² = 1220122100207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220122100251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103376755 + ... + 103388556.

It is an arithmetic number, because the mean of its divisors is an integer number (116615635968).

Almost surely, 2^{1220122100211} is an apocalyptic number.

1220122100211 is a deficient number, since it is larger than the sum of its proper divisors (645728075277).

1220122100211 is a wasteful number, since it uses less digits than its factorization.

1220122100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206765602.

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

Adding to 1220122100211 its reverse (1120012210221), we get a palindrome (2340134310432).

The spelling of 1220122100211 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred thousand, two hundred eleven".