1012121506 has 8 divisors (see below), whose sum is σ = 1656198864. Its totient is φ = 460055220.

The previous prime is 1012121501. The next prime is 1012121527. The reversal of 1012121506 is 6051212101.

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 (1012121501) 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, 23002740 + ... + 23002783.

It is an arithmetic number, because the mean of its divisors is an integer number (207024858).

Almost surely, 2^1012121506 is an apocalyptic number.

1012121506 is a deficient number, since it is larger than the sum of its proper divisors (644077358).

1012121506 is a wasteful number, since it uses less digits than its factorization.

1012121506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46005536.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1012121506 is about 31813.8571380460. The cubic root of 1012121506 is about 1004.0242854027.

Adding to 1012121506 its reverse (6051212101), we get a palindrome (7063333607).

The spelling of 1012121506 in words is "one billion, twelve million, one hundred twenty-one thousand, five hundred six".