20100212122 has 8 divisors (see below), whose sum is σ = 30600323136. Its totient is φ = 9900104412.

The previous prime is 20100212117. The next prime is 20100212179. The reversal of 20100212122 is 22121200102.

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, 75000658 + ... + 75000925.

It is an arithmetic number, because the mean of its divisors is an integer number (3825040392).

Almost surely, 2^20100212122 is an apocalyptic number.

20100212122 is a deficient number, since it is larger than the sum of its proper divisors (10500111014).

20100212122 is a wasteful number, since it uses less digits than its factorization.

20100212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150001652.

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

Adding to 20100212122 its reverse (22121200102), we get a palindrome (42221412224).

The spelling of 20100212122 in words is "twenty billion, one hundred million, two hundred twelve thousand, one hundred twenty-two".