402012011210012 has 18 divisors (see below), whose sum is σ = 818381594249352. Its totient is φ = 172290861947064.

The previous prime is 402012011210009. The next prime is 402012011210039. The reversal of 402012011210012 is 210012110210204.

It is a super-2 number, since 2×402012011210012² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1025540844728 + ... + 1025540845119.

It is an arithmetic number, because the mean of its divisors is an integer number (45465644124964).

Almost surely, 2^{402012011210012} is an apocalyptic number.

It is an amenable number.

402012011210012 is an abundant number, since it is smaller than the sum of its proper divisors (416369583039340).

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

402012011210012 is a wasteful number, since it uses less digits than its factorization.

402012011210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051081689865 (or 2051081689856 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 402012011210012 its reverse (210012110210204), we get a palindrome (612024121420216).

The spelling of 402012011210012 in words is "four hundred two trillion, twelve billion, eleven million, two hundred ten thousand, twelve".