212212020120123 has 16 divisors (see below), whose sum is σ = 292085806473216. Its totient is φ = 136906739661120.

The previous prime is 212212020120053. The next prime is 212212020120131. The reversal of 212212020120123 is 321021020212212.

It is not a de Polignac number, because 212212020120123 - 2¹² = 212212020116027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212212020120123.

It is not an unprimeable number, because it can be changed into a prime (212212020120623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32322411 + ... + 38329652.

It is an arithmetic number, because the mean of its divisors is an integer number (18255362904576).

Almost surely, 2^{212212020120123} is an apocalyptic number.

212212020120123 is a deficient number, since it is larger than the sum of its proper divisors (79873786353093).

212212020120123 is a wasteful number, since it uses less digits than its factorization.

212212020120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70684394.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 212212020120123 its reverse (321021020212212), we get a palindrome (533233040332335).

The spelling of 212212020120123 in words is "two hundred twelve trillion, two hundred twelve billion, twenty million, one hundred twenty thousand, one hundred twenty-three".