1402221051 has 48 divisors (see below), whose sum is σ = 2618773248. Its totient is φ = 728416800.

The previous prime is 1402221049. The next prime is 1402221061. The reversal of 1402221051 is 1501222041.

1402221051 is a `hidden beast` number, since 1 + 402 + 2 + 210 + 51 = 666.

It is not a de Polignac number, because 1402221051 - 2¹ = 1402221049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1402221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18760 + ... + 56181.

It is an arithmetic number, because the mean of its divisors is an integer number (54557776).

Almost surely, 2^1402221051 is an apocalyptic number.

1402221051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1402221051 is a deficient number, since it is larger than the sum of its proper divisors (1216552197).

1402221051 is an equidigital number, since it uses as much as digits as its factorization.

1402221051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74974 (or 74962 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1402221051 is about 37446.2421479112. The cubic root of 1402221051 is about 1119.2802164637.

Adding to 1402221051 its reverse (1501222041), we get a palindrome (2903443092).

The spelling of 1402221051 in words is "one billion, four hundred two million, two hundred twenty-one thousand, fifty-one".