1210211221322 has 16 divisors (see below), whose sum is σ = 1928718332640. Its totient is φ = 567900394128.

The previous prime is 1210211221231. The next prime is 1210211221327. The reversal of 1210211221322 is 2231221120121.

It is a super-2 number, since 2×1210211221322² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210211221294 and 1210211221303.

It is not an unprimeable number, because it can be changed into a prime (1210211221327) 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, 148816793 + ... + 148824924.

It is an arithmetic number, because the mean of its divisors is an integer number (120544895790).

Almost surely, 2^{1210211221322} is an apocalyptic number.

1210211221322 is a deficient number, since it is larger than the sum of its proper divisors (718507111318).

1210211221322 is a wasteful number, since it uses less digits than its factorization.

1210211221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297641845.

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

Adding to 1210211221322 its reverse (2231221120121), we get a palindrome (3441432341443).

The spelling of 1210211221322 in words is "one trillion, two hundred ten billion, two hundred eleven million, two hundred twenty-one thousand, three hundred twenty-two".