1021225356554 has 32 divisors (see below), whose sum is σ = 1654252104960. Its totient is φ = 470026608192.

The previous prime is 1021225356553. The next prime is 1021225356587. The reversal of 1021225356554 is 4556535221201.

1021225356554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1021225356553) 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, 79115369 + ... + 79128275.

It is an arithmetic number, because the mean of its divisors is an integer number (51695378280).

Almost surely, 2^{1021225356554} is an apocalyptic number.

1021225356554 is a deficient number, since it is larger than the sum of its proper divisors (633026748406).

1021225356554 is a wasteful number, since it uses less digits than its factorization.

1021225356554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21134.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 1021225356554 in words is "one trillion, twenty-one billion, two hundred twenty-five million, three hundred fifty-six thousand, five hundred fifty-four".