1021201552534 has 8 divisors (see below), whose sum is σ = 1531940200920. Its totient is φ = 510554818896.

The previous prime is 1021201552493. The next prime is 1021201552541. The reversal of 1021201552534 is 4352551021201.

1021201552534 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 a super-2 number, since 2×1021201552534² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021201552496 and 1021201552505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22950904 + ... + 22995355.

It is an arithmetic number, because the mean of its divisors is an integer number (191492525115).

Almost surely, 2^{1021201552534} is an apocalyptic number.

1021201552534 is a deficient number, since it is larger than the sum of its proper divisors (510738648386).

1021201552534 is a wasteful number, since it uses less digits than its factorization.

1021201552534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45957374.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1021201552534 its reverse (4352551021201), we get a palindrome (5373752573735).

The spelling of 1021201552534 in words is "one trillion, twenty-one billion, two hundred one million, five hundred fifty-two thousand, five hundred thirty-four".