1210412140421 has 16 divisors (see below), whose sum is σ = 1356205089408. Its totient is φ = 1070581406400.

The previous prime is 1210412140403. The next prime is 1210412140433. The reversal of 1210412140421 is 1240412140121.

It is not a de Polignac number, because 1210412140421 - 2¹⁴ = 1210412124037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210412140471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9662216 + ... + 9786686.

It is an arithmetic number, because the mean of its divisors is an integer number (84762818088).

Almost surely, 2^{1210412140421} is an apocalyptic number.

1210412140421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1210412140421 is a deficient number, since it is larger than the sum of its proper divisors (145792948987).

1210412140421 is a wasteful number, since it uses less digits than its factorization.

1210412140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148412.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1210412140421 its reverse (1240412140121), we get a palindrome (2450824280542).

The spelling of 1210412140421 in words is "one trillion, two hundred ten billion, four hundred twelve million, one hundred forty thousand, four hundred twenty-one".