1421590412220 has 192 divisors, whose sum is σ = 4436389440000. Its totient is φ = 337241456640.

The previous prime is 1421590412219. The next prime is 1421590412243. The reversal of 1421590412220 is 222140951241.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5573031 + ... + 5822529.

It is an arithmetic number, because the mean of its divisors is an integer number (23106195000).

Almost surely, 2^{1421590412220} is an apocalyptic number.

1421590412220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421590412220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2218194720000).

1421590412220 is an abundant number, since it is smaller than the sum of its proper divisors (3014799027780).

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

1421590412220 is a wasteful number, since it uses less digits than its factorization.

1421590412220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249708 (or 249706 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 1421590412220 in words is "one trillion, four hundred twenty-one billion, five hundred ninety million, four hundred twelve thousand, two hundred twenty".