1000012011210 has 48 divisors (see below), whose sum is σ = 2600248084200. Its totient is φ = 266647628160.

The previous prime is 1000012011209. The next prime is 1000012011211. The reversal of 1000012011210 is 121102100001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1000012011209) and next prime (1000012011211).

It can be written as a sum of positive squares in 4 ways, for example, as 910247656761 + 89764354449 = 954069^2 + 299607^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1000012011192 and 1000012011201.

It is not an unprimeable number, because it can be changed into a prime (1000012011211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636120 + ... + 1550700.

Almost surely, 2^{1000012011210} is an apocalyptic number.

1000012011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000012011210 is an abundant number, since it is smaller than the sum of its proper divisors (1600236072990).

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

1000012011210 is a wasteful number, since it uses less digits than its factorization.

1000012011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926743 (or 926740 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1000012011210 its reverse (121102100001), we get a palindrome (1121114111211).

The spelling of 1000012011210 in words is "one trillion, twelve million, eleven thousand, two hundred ten".