1212210121322 has 16 divisors (see below), whose sum is σ = 1865963591712. Its totient is φ = 590303500080.

The previous prime is 1212210121321. The next prime is 1212210121327. The reversal of 1212210121322 is 2231210122121.

It is a junction number, because it is equal to n+sod(n) for n = 1212210121294 and 1212210121303.

It is not an unprimeable number, because it can be changed into a prime (1212210121321) 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, 20280629 + ... + 20340312.

It is an arithmetic number, because the mean of its divisors is an integer number (116622724482).

Almost surely, 2^{1212210121322} is an apocalyptic number.

1212210121322 is a deficient number, since it is larger than the sum of its proper divisors (653753470390).

1212210121322 is a wasteful number, since it uses less digits than its factorization.

1212210121322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40621333.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1212210121322 its reverse (2231210122121), we get a palindrome (3443420243443).

The spelling of 1212210121322 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty-one thousand, three hundred twenty-two".