20121020122 has 8 divisors (see below), whose sum is σ = 34493177376. Its totient is φ = 8623294332.

The previous prime is 20121020069. The next prime is 20121020147. The reversal of 20121020122 is 22102012102.

It is a happy number.

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

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, 718607848 + ... + 718607875.

It is an arithmetic number, because the mean of its divisors is an integer number (4311647172).

Almost surely, 2^20121020122 is an apocalyptic number.

20121020122 is a deficient number, since it is larger than the sum of its proper divisors (14372157254).

20121020122 is a wasteful number, since it uses less digits than its factorization.

20121020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437215732.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20121020122 its reverse (22102012102), we get a palindrome (42223032224).

The spelling of 20121020122 in words is "twenty billion, one hundred twenty-one million, twenty thousand, one hundred twenty-two".