1421122110 has 16 divisors (see below), whose sum is σ = 3410693136. Its totient is φ = 378965888.

The previous prime is 1421122097. The next prime is 1421122121. The reversal of 1421122110 is 112211241.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421122110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23685339 + ... + 23685398.

It is an arithmetic number, because the mean of its divisors is an integer number (213168321).

Almost surely, 2^1421122110 is an apocalyptic number.

1421122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421122110 is an abundant number, since it is smaller than the sum of its proper divisors (1989571026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421122110 is a wasteful number, since it uses less digits than its factorization.

1421122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47370747.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1421122110 is about 37697.7732764151. The cubic root of 1421122110 is about 1124.2868527166.

Adding to 1421122110 its reverse (112211241), we get a palindrome (1533333351).

The spelling of 1421122110 in words is "one billion, four hundred twenty-one million, one hundred twenty-two thousand, one hundred ten".