2154122010102 has 16 divisors (see below), whose sum is σ = 4413323143152. Its totient is φ = 700527482880.

The previous prime is 2154122010041. The next prime is 2154122010107. The reversal of 2154122010102 is 2010102214512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154122010107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4378296523 + ... + 4378297014.

It is an arithmetic number, because the mean of its divisors is an integer number (275832696447).

Almost surely, 2^{2154122010102} is an apocalyptic number.

2154122010102 is an abundant number, since it is smaller than the sum of its proper divisors (2259201133050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154122010102 is a wasteful number, since it uses less digits than its factorization.

2154122010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756593583.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 2154122010102 its reverse (2010102214512), we get a palindrome (4164224224614).

The spelling of 2154122010102 in words is "two trillion, one hundred fifty-four billion, one hundred twenty-two million, ten thousand, one hundred two".