211211021122 has 4 divisors (see below), whose sum is σ = 316816531686. Its totient is φ = 105605510560.

The previous prime is 211211021069. The next prime is 211211021143. The reversal of 211211021122 is 221120112112.

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

It can be written as a sum of positive squares in only one way, i.e., 151631581201 + 59579439921 = 389399^2 + 244089^2 .

It is a super-2 number, since 2×211211021122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211211021096 and 211211021105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52802755279 + ... + 52802755282.

Almost surely, 2^211211021122 is an apocalyptic number.

211211021122 is a deficient number, since it is larger than the sum of its proper divisors (105605510564).

211211021122 is a wasteful number, since it uses less digits than its factorization.

211211021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105605510563.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211211021122 its reverse (221120112112), we get a palindrome (432331133234).

The spelling of 211211021122 in words is "two hundred eleven billion, two hundred eleven million, twenty-one thousand, one hundred twenty-two".