1035534421221 has 8 divisors (see below), whose sum is σ = 1381171129824. Its totient is φ = 690126996720.

The previous prime is 1035534421213. The next prime is 1035534421247. The reversal of 1035534421221 is 1221244355301.

1035534421221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1035534421221 - 2³ = 1035534421213 is a prime.

It is a super-3 number, since 3×1035534421221³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1035534421021) 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, 57310486 + ... + 57328551.

It is an arithmetic number, because the mean of its divisors is an integer number (172646391228).

Almost surely, 2^{1035534421221} is an apocalyptic number.

It is an amenable number.

1035534421221 is a deficient number, since it is larger than the sum of its proper divisors (345636708603).

1035534421221 is a wasteful number, since it uses less digits than its factorization.

1035534421221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114642051.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1035534421221 its reverse (1221244355301), we get a palindrome (2256778776522).

The spelling of 1035534421221 in words is "one trillion, thirty-five billion, five hundred thirty-four million, four hundred twenty-one thousand, two hundred twenty-one".