1202040421240 has 16 divisors (see below), whose sum is σ = 2704590947880. Its totient is φ = 480816168480.

The previous prime is 1202040421181. The next prime is 1202040421301. The reversal of 1202040421240 is 421240402021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15025505226 + ... + 15025505305.

Almost surely, 2^{1202040421240} is an apocalyptic number.

1202040421240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202040421240 is an abundant number, since it is smaller than the sum of its proper divisors (1502550526640).

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

1202040421240 is a wasteful number, since it uses less digits than its factorization.

1202040421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30051010542 (or 30051010538 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 1202040421240 its reverse (421240402021), we get a palindrome (1623280823261).

The spelling of 1202040421240 in words is "one trillion, two hundred two billion, forty million, four hundred twenty-one thousand, two hundred forty".