1421021676411 has 12 divisors (see below), whose sum is σ = 2052711652992. Its totient is φ = 947290190256.

The previous prime is 1421021676397. The next prime is 1421021676457. The reversal of 1421021676411 is 1146761201241.

1421021676411 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 0 + 2 + 1 + 6 + 7 + 641 + 1 = 666.

It is not a de Polignac number, because 1421021676411 - 2¹⁰ = 1421021675387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421021676461) 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, 4642971 + ... + 4939556.

It is an arithmetic number, because the mean of its divisors is an integer number (171059304416).

Almost surely, 2^{1421021676411} is an apocalyptic number.

1421021676411 is a deficient number, since it is larger than the sum of its proper divisors (631689976581).

1421021676411 is a wasteful number, since it uses less digits than its factorization.

1421021676411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9599010 (or 9599007 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

Adding to 1421021676411 its reverse (1146761201241), we get a palindrome (2567782877652).

The spelling of 1421021676411 in words is "one trillion, four hundred twenty-one billion, twenty-one million, six hundred seventy-six thousand, four hundred eleven".