121000022211 has 32 divisors (see below), whose sum is σ = 170511298560. Its totient is φ = 76206259584.

The previous prime is 121000022197. The next prime is 121000022261. The reversal of 121000022211 is 112220000121.

It is not a de Polignac number, because 121000022211 - 2¹⁷ = 120999891139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121000022261) 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, 1656486 + ... + 1727988.

It is an arithmetic number, because the mean of its divisors is an integer number (5328478080).

Almost surely, 2^121000022211 is an apocalyptic number.

121000022211 is a deficient number, since it is larger than the sum of its proper divisors (49511276349).

121000022211 is a wasteful number, since it uses less digits than its factorization.

121000022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71955.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121000022211 its reverse (112220000121), we get a palindrome (233220022332).

The spelling of 121000022211 in words is "one hundred twenty-one billion, twenty-two thousand, two hundred eleven".