211220001200122 has 32 divisors (see below), whose sum is σ = 325125422760960. Its totient is φ = 102866982341760.

The previous prime is 211220001200051. The next prime is 211220001200147. The reversal of 211220001200122 is 221002100022112.

It is a happy number.

It is a super-2 number, since 2×211220001200122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211220001200096 and 211220001200105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33517398 + ... + 39317374.

It is an arithmetic number, because the mean of its divisors is an integer number (10160169461280).

Almost surely, 2^{211220001200122} is an apocalyptic number.

211220001200122 is a deficient number, since it is larger than the sum of its proper divisors (113905421560838).

211220001200122 is a wasteful number, since it uses less digits than its factorization.

211220001200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801886.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211220001200122 its reverse (221002100022112), we get a palindrome (432222101222234).

The spelling of 211220001200122 in words is "two hundred eleven trillion, two hundred twenty billion, one million, two hundred thousand, one hundred twenty-two".