421155211200001 has 8 divisors (see below), whose sum is σ = 421545571324520. Its totient is φ = 420764922179712.

The previous prime is 421155211199999. The next prime is 421155211200037. The reversal of 421155211200001 is 100002112551124.

It can be written as a sum of positive squares in 4 ways, for example, as 49265237966400 + 371889973233601 = 7018920^2 + 19284449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421155211200001 - 2¹ = 421155211199999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421155211206001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5920770 + ... + 29620363.

It is an arithmetic number, because the mean of its divisors is an integer number (52693196415565).

Almost surely, 2^{421155211200001} is an apocalyptic number.

It is an amenable number.

421155211200001 is a deficient number, since it is larger than the sum of its proper divisors (390360124519).

421155211200001 is a wasteful number, since it uses less digits than its factorization.

421155211200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35552115.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 421155211200001 its reverse (100002112551124), we get a palindrome (521157323751125).

The spelling of 421155211200001 in words is "four hundred twenty-one trillion, one hundred fifty-five billion, two hundred eleven million, two hundred thousand, one".