1021212002610 has 96 divisors (see below), whose sum is σ = 2672394706800. Its totient is φ = 270560300544.

The previous prime is 1021212002609. The next prime is 1021212002617. The reversal of 1021212002610 is 162002121201.

1021212002610 is a `hidden beast` number, since 10 + 2 + 1 + 21 + 20 + 0 + 2 + 610 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 425572264881 + 595639737729 = 652359^2 + 771777^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1021212002617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8641884 + ... + 8759256.

Almost surely, 2^{1021212002610} is an apocalyptic number.

1021212002610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021212002610 is an abundant number, since it is smaller than the sum of its proper divisors (1651182704190).

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

1021212002610 is a wasteful number, since it uses less digits than its factorization.

1021212002610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118012 (or 118009 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1021212002610 its reverse (162002121201), we get a palindrome (1183214123811).

The spelling of 1021212002610 in words is "one trillion, twenty-one billion, two hundred twelve million, two thousand, six hundred ten".