1021121343229 has 64 divisors (see below), whose sum is σ = 1213561440000. Its totient is φ = 850637168640.

The previous prime is 1021121343181. The next prime is 1021121343241. The reversal of 1021121343229 is 9223431211201.

It is not a de Polignac number, because 1021121343229 - 2¹¹ = 1021121341181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021121343229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021121343259) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 242486934 + ... + 242491144.

It is an arithmetic number, because the mean of its divisors is an integer number (18961897500).

Almost surely, 2^{1021121343229} is an apocalyptic number.

1021121343229 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1021121343229 is a deficient number, since it is larger than the sum of its proper divisors (192440096771).

1021121343229 is a wasteful number, since it uses less digits than its factorization.

1021121343229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 1021121343229 in words is "one trillion, twenty-one billion, one hundred twenty-one million, three hundred forty-three thousand, two hundred twenty-nine".