1021212432351 has 12 divisors (see below), whose sum is σ = 1539218738928. Its totient is φ = 651207927744.

The previous prime is 1021212432293. The next prime is 1021212432431. The reversal of 1021212432351 is 1532342121201.

It is a happy number.

1021212432351 is a `hidden beast` number, since 1 + 0 + 212 + 12 + 432 + 3 + 5 + 1 = 666.

It is not a de Polignac number, because 1021212432351 - 2¹³ = 1021212424159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021212430351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2466696490 + ... + 2466696903.

It is an arithmetic number, because the mean of its divisors is an integer number (128268228244).

Almost surely, 2^{1021212432351} is an apocalyptic number.

1021212432351 is a deficient number, since it is larger than the sum of its proper divisors (518006306577).

1021212432351 is a wasteful number, since it uses less digits than its factorization.

1021212432351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4933393422 (or 4933393419 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1021212432351 its reverse (1532342121201), we get a palindrome (2553554553552).

The spelling of 1021212432351 in words is "one trillion, twenty-one billion, two hundred twelve million, four hundred thirty-two thousand, three hundred fifty-one".