20212211122123 has 8 divisors (see below), whose sum is σ = 21478425244992. Its totient is φ = 18954581502336.

The previous prime is 20212211122111. The next prime is 20212211122219. The reversal of 20212211122123 is 32122111221202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20212211122123 - 2⁹ = 20212211121611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20212211122094 and 20212211122103.

It is not an unprimeable number, because it can be changed into a prime (20212211126123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2146120915 + ... + 2146130332.

It is an arithmetic number, because the mean of its divisors is an integer number (2684803155624).

Almost surely, 2^{20212211122123} is an apocalyptic number.

20212211122123 is a deficient number, since it is larger than the sum of its proper divisors (1266214122869).

20212211122123 is a wasteful number, since it uses less digits than its factorization.

20212211122123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4292251541.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 20212211122123 its reverse (32122111221202), we get a palindrome (52334322343325).

The spelling of 20212211122123 in words is "twenty trillion, two hundred twelve billion, two hundred eleven million, one hundred twenty-two thousand, one hundred twenty-three".