1212011020210 has 32 divisors (see below), whose sum is σ = 2184942702384. Its totient is φ = 484066560000.

The previous prime is 1212011020193. The next prime is 1212011020229. The reversal of 1212011020210 is 120201102121.

It can be written as a sum of positive squares in 8 ways, for example, as 3908875441 + 1208102144769 = 62521^2 + 1099137^2 .

It is a super-2 number, since 2×1212011020210² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17752740 + ... + 17820880.

Almost surely, 2^{1212011020210} is an apocalyptic number.

1212011020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212011020210 is a deficient number, since it is larger than the sum of its proper divisors (972931682174).

1212011020210 is a wasteful number, since it uses less digits than its factorization.

1212011020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70830.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212011020210 its reverse (120201102121), we get a palindrome (1332212122331).

It can be divided in two parts, 121201 and 1020210, that added together give a palindrome (1141411).

The spelling of 1212011020210 in words is "one trillion, two hundred twelve billion, eleven million, twenty thousand, two hundred ten".