1402541150221 has 4 divisors (see below), whose sum is σ = 1402554076092. Its totient is φ = 1402528224352.

The previous prime is 1402541150209. The next prime is 1402541150233. The reversal of 1402541150221 is 1220511452041.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1402541150209) and next prime (1402541150233).

It can be written as a sum of positive squares in 2 ways, for example, as 878698137321 + 523843012900 = 937389^2 + 723770^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402541150221 - 2¹³ = 1402541142029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1402541150221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402541150261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6298786 + ... + 6517651.

It is an arithmetic number, because the mean of its divisors is an integer number (350638519023).

Almost surely, 2^{1402541150221} is an apocalyptic number.

It is an amenable number.

1402541150221 is a deficient number, since it is larger than the sum of its proper divisors (12925871).

1402541150221 is a wasteful number, since it uses less digits than its factorization.

1402541150221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12925870.

The product of its (nonzero) digits is 3200, while the sum is 28.

The spelling of 1402541150221 in words is "one trillion, four hundred two billion, five hundred forty-one million, one hundred fifty thousand, two hundred twenty-one".