212203121320122 has 64 divisors (see below), whose sum is σ = 447205631299200. Its totient is φ = 66942197038080.

The previous prime is 212203121320117. The next prime is 212203121320123. The reversal of 212203121320122 is 221023121302212.

It is a super-2 number, since 2×212203121320122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212203121320092 and 212203121320101.

It is not an unprimeable number, because it can be changed into a prime (212203121320123) 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, 890140222 + ... + 890378582.

It is an arithmetic number, because the mean of its divisors is an integer number (6987587989050).

Almost surely, 2^{212203121320122} is an apocalyptic number.

212203121320122 is an abundant number, since it is smaller than the sum of its proper divisors (235002509979078).

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

212203121320122 is a wasteful number, since it uses less digits than its factorization.

212203121320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246431.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 212203121320122 its reverse (221023121302212), we get a palindrome (433226242622334).

The spelling of 212203121320122 in words is "two hundred twelve trillion, two hundred three billion, one hundred twenty-one million, three hundred twenty thousand, one hundred twenty-two".