1021400225351 has 16 divisors (see below), whose sum is σ = 1124212089600. Its totient is φ = 920284231680.

The previous prime is 1021400225347. The next prime is 1021400225399. The reversal of 1021400225351 is 1535220041201.

1021400225351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021400225351 - 2² = 1021400225347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021400225351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021400225341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345221 + ... + 1470366.

It is an arithmetic number, because the mean of its divisors is an integer number (70263255600).

Almost surely, 2^{1021400225351} is an apocalyptic number.

1021400225351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1021400225351 is a deficient number, since it is larger than the sum of its proper divisors (102811864249).

1021400225351 is a wasteful number, since it uses less digits than its factorization.

1021400225351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816054.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 1021400225351 its reverse (1535220041201), we get a palindrome (2556620266552).

The spelling of 1021400225351 in words is "one trillion, twenty-one billion, four hundred million, two hundred twenty-five thousand, three hundred fifty-one".