1400022121 has 16 divisors (see below), whose sum is σ = 1515548160. Its totient is φ = 1289882880.

The previous prime is 1400022119. The next prime is 1400022139. The reversal of 1400022121 is 1212200041.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1400022121 - 2¹ = 1400022119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400022191) 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, 65101 + ... + 83893.

It is an arithmetic number, because the mean of its divisors is an integer number (94721760).

Almost surely, 2^1400022121 is an apocalyptic number.

It is an amenable number.

1400022121 is a deficient number, since it is larger than the sum of its proper divisors (115526039).

1400022121 is a wasteful number, since it uses less digits than its factorization.

1400022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18936.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1400022121 is about 37416.8694708684. The cubic root of 1400022121 is about 1118.6948340785.

Adding to 1400022121 its reverse (1212200041), we get a palindrome (2612222162).

The spelling of 1400022121 in words is "one billion, four hundred million, twenty-two thousand, one hundred twenty-one".