1214520222144 has 56 divisors (see below), whose sum is σ = 3219586141968. Its totient is φ = 404062996480.

The previous prime is 1214520222143. The next prime is 1214520222193. The reversal of 1214520222144 is 4412220254121.

It is a super-2 number, since 2×1214520222144² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214520222143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5970627 + ... + 6170690.

It is an arithmetic number, because the mean of its divisors is an integer number (57492609678).

Almost surely, 2^{1214520222144} is an apocalyptic number.

It is an amenable number.

1214520222144 is an abundant number, since it is smaller than the sum of its proper divisors (2005065919824).

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

1214520222144 is a wasteful number, since it uses less digits than its factorization.

1214520222144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12141853 (or 12141843 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 1214520222144 its reverse (4412220254121), we get a palindrome (5626740476265).

The spelling of 1214520222144 in words is "one trillion, two hundred fourteen billion, five hundred twenty million, two hundred twenty-two thousand, one hundred forty-four".