1421400022120 has 64 divisors (see below), whose sum is σ = 3625433280000. Its totient is φ = 497202271488.

The previous prime is 1421400022111. The next prime is 1421400022129. The reversal of 1421400022120 is 212200041241.

It is an interprime number because it is at equal distance from previous prime (1421400022111) and next prime (1421400022129).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1421400022129) 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, 71923320 + ... + 71943079.

It is an arithmetic number, because the mean of its divisors is an integer number (56647395000).

Almost surely, 2^{1421400022120} is an apocalyptic number.

1421400022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421400022120 is an abundant number, since it is smaller than the sum of its proper divisors (2204033257880).

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

1421400022120 is a wasteful number, since it uses less digits than its factorization.

1421400022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143866442 (or 143866438 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1421400022120 its reverse (212200041241), we get a palindrome (1633600063361).

The spelling of 1421400022120 in words is "one trillion, four hundred twenty-one billion, four hundred million, twenty-two thousand, one hundred twenty".