1012000154421 has 16 divisors (see below), whose sum is σ = 1395975038400. Its totient is φ = 651349778688.

The previous prime is 1012000154419. The next prime is 1012000154453. The reversal of 1012000154421 is 1244510002101.

It is not a de Polignac number, because 1012000154421 - 2¹ = 1012000154419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012000154411) 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, 628045 + ... + 1555133.

It is an arithmetic number, because the mean of its divisors is an integer number (87248439900).

Almost surely, 2^{1012000154421} is an apocalyptic number.

It is an amenable number.

1012000154421 is a deficient number, since it is larger than the sum of its proper divisors (383974883979).

1012000154421 is a wasteful number, since it uses less digits than its factorization.

1012000154421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939668.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 1012000154421 its reverse (1244510002101), we get a palindrome (2256510156522).

The spelling of 1012000154421 in words is "one trillion, twelve billion, one hundred fifty-four thousand, four hundred twenty-one".