20212060100551 has 4 divisors (see below), whose sum is σ = 22049520109704. Its totient is φ = 18374600091400.

The previous prime is 20212060100521. The next prime is 20212060100563. The reversal of 20212060100551 is 15500106021202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20212060100551 - 2⁷ = 20212060100423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212060100521) 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, 918730004560 + ... + 918730004581.

It is an arithmetic number, because the mean of its divisors is an integer number (5512380027426).

Almost surely, 2^{20212060100551} is an apocalyptic number.

20212060100551 is a deficient number, since it is larger than the sum of its proper divisors (1837460009153).

20212060100551 is a wasteful number, since it uses less digits than its factorization.

20212060100551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837460009152.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 20212060100551 its reverse (15500106021202), we get a palindrome (35712166121753).

The spelling of 20212060100551 in words is "twenty trillion, two hundred twelve billion, sixty million, one hundred thousand, five hundred fifty-one".