10212221456254 has 4 divisors (see below), whose sum is σ = 15318332184384. Its totient is φ = 5106110728126.

The previous prime is 10212221456251. The next prime is 10212221456267. The reversal of 10212221456254 is 45265412221201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212221456251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553055364062 + ... + 2553055364065.

It is an arithmetic number, because the mean of its divisors is an integer number (3829583046096).

Almost surely, 2^{10212221456254} is an apocalyptic number.

10212221456254 is a deficient number, since it is larger than the sum of its proper divisors (5106110728130).

10212221456254 is an equidigital number, since it uses as much as digits as its factorization.

10212221456254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106110728129.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 10212221456254 its reverse (45265412221201), we get a palindrome (55477633677455).

It can be divided in two parts, 1021222 and 1456254, that added together give a square (2477476 = 1574²).

The spelling of 10212221456254 in words is "ten trillion, two hundred twelve billion, two hundred twenty-one million, four hundred fifty-six thousand, two hundred fifty-four".