1021210212330 has 192 divisors, whose sum is σ = 3311913885696. Its totient is φ = 212096880000.

The previous prime is 1021210212329. The next prime is 1021210212383. The reversal of 1021210212330 is 332120121201.

1021210212330 is a `hidden beast` number, since 1 + 0 + 2 + 121 + 0 + 212 + 330 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14733255 + ... + 14802405.

It is an arithmetic number, because the mean of its divisors is an integer number (17249551488).

Almost surely, 2^{1021210212330} is an apocalyptic number.

1021210212330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021210212330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655956942848).

1021210212330 is an abundant number, since it is smaller than the sum of its proper divisors (2290703673366).

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

1021210212330 is a wasteful number, since it uses less digits than its factorization.

1021210212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71313 (or 71310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1021210212330 its reverse (332120121201), we get a palindrome (1353330333531).

The spelling of 1021210212330 in words is "one trillion, twenty-one billion, two hundred ten million, two hundred twelve thousand, three hundred thirty".