1422431221860 has 72 divisors (see below), whose sum is σ = 4706954231616. Its totient is φ = 344831810880.

The previous prime is 1422431221811. The next prime is 1422431221879. The reversal of 1422431221860 is 681221342241.

1422431221860 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 431 + 2 + 218 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359197824 + ... + 359201783.

It is an arithmetic number, because the mean of its divisors is an integer number (65374364328).

Almost surely, 2^{1422431221860} is an apocalyptic number.

1422431221860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422431221860 is an abundant number, since it is smaller than the sum of its proper divisors (3284523009756).

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

1422431221860 is a wasteful number, since it uses less digits than its factorization.

1422431221860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718399633 (or 718399628 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 1422431221860 in words is "one trillion, four hundred twenty-two billion, four hundred thirty-one million, two hundred twenty-one thousand, eight hundred sixty".