1210211221002 has 32 divisors (see below), whose sum is σ = 2886466516992. Its totient is φ = 330740954544.

The previous prime is 1210211220997. The next prime is 1210211221007. The reversal of 1210211221002 is 2001221120121.

It is an interprime number because it is at equal distance from previous prime (1210211220997) and next prime (1210211221007).

It is a super-2 number, since 2×1210211221002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210211221007) 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, 626402358 + ... + 626404289.

It is an arithmetic number, because the mean of its divisors is an integer number (90202078656).

Almost surely, 2^{1210211221002} is an apocalyptic number.

1210211221002 is an abundant number, since it is smaller than the sum of its proper divisors (1676255295990).

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

1210211221002 is a wasteful number, since it uses less digits than its factorization.

1210211221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252806682.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1210211221002 its reverse (2001221120121), we get a palindrome (3211432341123).

The spelling of 1210211221002 in words is "one trillion, two hundred ten billion, two hundred eleven million, two hundred twenty-one thousand, two".