1214520021402 has 32 divisors (see below), whose sum is σ = 2513048345280. Its totient is φ = 390841382400.

The previous prime is 1214520021401. The next prime is 1214520021419. The reversal of 1214520021402 is 2041200254121.

It is not an unprimeable number, because it can be changed into a prime (1214520021401) 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, 1447777 + ... + 2127227.

It is an arithmetic number, because the mean of its divisors is an integer number (78532760790).

Almost surely, 2^{1214520021402} is an apocalyptic number.

1214520021402 is an abundant number, since it is smaller than the sum of its proper divisors (1298528323878).

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

1214520021402 is a wasteful number, since it uses less digits than its factorization.

1214520021402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689758.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 1214520021402 its reverse (2041200254121), we get a palindrome (3255720275523).

The spelling of 1214520021402 in words is "one trillion, two hundred fourteen billion, five hundred twenty million, twenty-one thousand, four hundred two".