1210121122210 has 128 divisors (see below), whose sum is σ = 2948773621248. Its totient is φ = 348166368000.

The previous prime is 1210121122169. The next prime is 1210121122247. The reversal of 1210121122210 is 122211210121.

It is a super-3 number, since 3×1210121122210³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 711660 + ... + 1710760.

It is an arithmetic number, because the mean of its divisors is an integer number (23037293916).

Almost surely, 2^{1210121122210} is an apocalyptic number.

1210121122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210121122210 is an abundant number, since it is smaller than the sum of its proper divisors (1738652499038).

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

1210121122210 is a wasteful number, since it uses less digits than its factorization.

1210121122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999161 (or 999139 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1210121122210 its reverse (122211210121), we get a palindrome (1332332332331).

It can be divided in two parts, 1210121 and 122210, that added together give a palindrome (1332331).

The spelling of 1210121122210 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred ten".