20122012402 has 8 divisors (see below), whose sum is σ = 30184768512. Its totient is φ = 10060422900.

The previous prime is 20122012373. The next prime is 20122012409. The reversal of 20122012402 is 20421022102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20122012409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247174 + ... + 318337.

It is an arithmetic number, because the mean of its divisors is an integer number (3773096064).

Almost surely, 2^20122012402 is an apocalyptic number.

20122012402 is a deficient number, since it is larger than the sum of its proper divisors (10062756110).

20122012402 is a wasteful number, since it uses less digits than its factorization.

20122012402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583304.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20122012402 its reverse (20421022102), we get a palindrome (40543034504).

The spelling of 20122012402 in words is "twenty billion, one hundred twenty-two million, twelve thousand, four hundred two".