211000222012100 has 18 divisors (see below), whose sum is σ = 457870481766474. Its totient is φ = 84400088804800.

The previous prime is 211000222012081. The next prime is 211000222012103. The reversal of 211000222012100 is 1210222000112.

It can be written as a sum of positive squares in 3 ways, for example, as 31599485880964 + 179400736131136 = 5621342^2 + 13394056^2 .

It is not an unprimeable number, because it can be changed into a prime (211000222012103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1055001109961 + ... + 1055001110160.

Almost surely, 2^{211000222012100} is an apocalyptic number.

211000222012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211000222012100 is an abundant number, since it is smaller than the sum of its proper divisors (246870259754374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211000222012100 is a wasteful number, since it uses less digits than its factorization.

211000222012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110002220135 (or 2110002220128 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211000222012100 its reverse (1210222000112), we get a palindrome (212210444012212).

The spelling of 211000222012100 in words is "two hundred eleven trillion, two hundred twenty-two million, twelve thousand, one hundred".