212060121654 has 64 divisors (see below), whose sum is σ = 437891973120. Its totient is φ = 68428139040.

The previous prime is 212060121653. The next prime is 212060121671. The reversal of 212060121654 is 456121060212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212060121653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10612677 + ... + 10632639.

It is an arithmetic number, because the mean of its divisors is an integer number (6842062080).

Almost surely, 2^212060121654 is an apocalyptic number.

212060121654 is an abundant number, since it is smaller than the sum of its proper divisors (225831851466).

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

212060121654 is a wasteful number, since it uses less digits than its factorization.

212060121654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20425.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 212060121654 its reverse (456121060212), we get a palindrome (668181181866).

The spelling of 212060121654 in words is "two hundred twelve billion, sixty million, one hundred twenty-one thousand, six hundred fifty-four".