1210000101020 has 24 divisors (see below), whose sum is σ = 2566158634368. Its totient is φ = 479207960000.

The previous prime is 1210000100921. The next prime is 1210000101043. The reversal of 1210000101020 is 201010000121.

It is a junction number, because it is equal to n+sod(n) for n = 1210000100989 and 1210000101007.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 299502956 + ... + 299506995.

It is an arithmetic number, because the mean of its divisors is an integer number (106923276432).

Almost surely, 2^{1210000101020} is an apocalyptic number.

1210000101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210000101020 is an abundant number, since it is smaller than the sum of its proper divisors (1356158533348).

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

1210000101020 is a wasteful number, since it uses less digits than its factorization.

1210000101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599010061 (or 599010059 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1210000101020 its reverse (201010000121), we get a palindrome (1411010101141).

The spelling of 1210000101020 in words is "one trillion, two hundred ten billion, one hundred one thousand, twenty".