1421122030400 has 42 divisors (see below), whose sum is σ = 3496848399990. Its totient is φ = 568448811520.

The previous prime is 1421122030381. The next prime is 1421122030411. The reversal of 1421122030400 is 40302211241.

It can be written as a sum of positive squares in 3 ways, for example, as 285942589696 + 1135179440704 = 534736^2 + 1065448^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 444099035 + ... + 444102234.

Almost surely, 2^{1421122030400} is an apocalyptic number.

1421122030400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421122030400 is an abundant number, since it is smaller than the sum of its proper divisors (2075726369590).

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

1421122030400 is an equidigital number, since it uses as much as digits as its factorization.

1421122030400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888201291 (or 888201276 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1421122030400 its reverse (40302211241), we get a palindrome (1461424241641).

The spelling of 1421122030400 in words is "one trillion, four hundred twenty-one billion, one hundred twenty-two million, thirty thousand, four hundred".